XI
On the Therapeutic Use of Precious and Semi-Precious Stones

THE medicinal use of precious stones may be traced back to very ancient times. It has been conjectured that their employment for such purposes was introduced to Europe from India, whence many of the stones were derived. Nevertheless, the earliest evidence we have rather points to Egypt as the source, and, indeed, it appears that in early Egyptian times the chemical constituents of the stones were much more rationally considered than at a later period in Europe. The Ebers Papyrus, for instance, recommends the use of certain astringent substances, such as lapis-lazuli, as ingredients of eye-salves, and hematite, an iron oxide, was used for checking hemorrhages and for reducing inflammations. Little by little, however, superstition associated certain special virtues with the color and quality of precious stones, and their virtues were thought to be greatly enhanced by engraving on them the image of some god, or of some object symbolizing certain of the activities of nature. Later still, the science of astrology, most highly developed in Assyria and Babylonia, was brought into combination with the various superstitions above indicated, so that the image was believed to have much greater efficacy if the engraving were executed when the sun was in a certain constellation or when the moon or some one of the planets was in the ascendant at the time.

If we exclude certain fragmentary notices in Egyptian literature—notably the statements in the Ebers Papyrus—and the very uncertain sources in Hindu literature, the earliest authority for this branch of the subject is the Natural History of Pliny. In this connection, however, it is only just to call attention to a fact which has been often ignored—namely, that Pliny himself had very little faith in the teachings of the “magi,” as he calls them, in regard to the superstitious use of gems for the prevention or cure of diseases; indeed, he seems to have been almost as sceptical in his attitude as many modern writers, for certain quite recent authorities still credit amber and a few other mineral substances with therapeutic effects other than those which can be explained by the known action of their chemical constituents. Still, Pliny yielded so far to the taste of his time as to preserve for us many of the statements of earlier writers on the subject, naming them in most cases and so enabling us to form some idea of the character of this pseudo-science in the Roman world in the first century of our era. With the gradual decay of ancient learning, the less valuable elements of popular belief came more and more into the foreground, and the old superstitions were freely copied by successive authors, each of whom felt called upon to add something new on his own account. This explains much of the confusion that reigns in regard to the attribution of special virtues to the different stones, for the wider the reading of the author the greater became the number of virtues attributed to each separate stone, until, at last, we might almost say that each and every precious stone could be used for the cure of all diseases. Nevertheless, it is comparatively easy to see that either the color or constitution of the stone originally indicated its use for this or that disease.

The European writers on the medical properties of precious stones were influenced by quite different considerations; their chief aim was to represent each stone, regarded simply as a mineral substance, as being the abode of the greatest possible number of curative properties. Indeed, many of the most highly recommended electuaries contained all kinds of stones, as though the effect to be produced did not depend upon the qualities of any single stone, or class of stones, but rather upon the quantity used. In Arnobio’s “Tesoro delle Gioie,”464 we have a receipt for the composition of “the most noble electuary of jacinth.” This contains jacinth, emerald, sapphire, topaz, garnet, pearl, ruby, white and red coral, and amber, as well as many animal and vegetable substances, in all, thirty-four ingredients. It would indeed seem that a good dose of such a mixture should have provided a cure for “all the ills that flesh is heir to,” by the simple and effective means of removing the unhappy patient to a better world.

Treating of the metallic affinities of precious stones, Paracelsus (1493-1541) affirmed that the emerald was a copper stone; the carbuncle and the jasper were golden stones; the ruby and the chalcedony, silver stones. The “white sapphire” (corundum) was a stone of Jupiter, while the jacinth was a mercurial stone. Powdered jacinth mixed with an equal quantity of laudanum was recommended as a remedy for fevers resulting from “putrefaction of the air or water.” This illustrates the custom of combining an inefficacious material, such as the powder of a precious stone, with another possessing genuine remedial virtue, the name of the stone appealing to the popular superstitions regarding its therapeutic powers, and thus rendering the preparation more acceptable.465

It is related by Plutarch that when Pericles was dying of the plague, he showed to one of his friends, who was visiting him, an amulet suspended from his neck. This had been given to Pericles by the women of his household, and Plutarch cites the instance as a proof that even the strongest minds will at certain times yield to the influence of superstition.466

There were sceptics in ancient times who put no faith in the popular superstitions as to the curative powers of precious stones. Eusebius (ca. 264-ca. 349), in his oration on the Emperor Constantine the Great (272-337), says:467

He held that the varieties of stones so greatly admired were useless and ineffective things. They possessed no other qualities than their natural ones, and hence no efficacy to hold evils aloof; for what power can such things have either to cure disease or to avert death? Nevertheless, although he well knew this, he was in no wise opposed to their use simply as ornaments by his subjects.

The Middle High German didactic poem on precious stones, composed by Volmar, or Volamar, about 1250, appears to have been written as a rejoinder to a satirical poem, the work of a writer called the “Stricker” (rascal). What chiefly aroused Volmar’s wrath was the fact that this irreverent personage dared to assert that a piece of colored glass set in a ring looked just as well and possessed the same virtues as a genuine precious stone of the same color. Volmar does not mince matters, and roundly declares that whoever should kill the man who wrote thus would do no sinful act. While we can scarcely recommend such drastic action, we must admit that we feel a little sympathy with the medieval champion of genuine stones against imitations.

A most interesting item recording one phase of a great tyrant’s character is reported by Sir Jerome Horsey, who was entrusted with messages to and from Elizabeth of England and Ivan the Terrible of Russia. He gives, in his “Travels,” a graphic recital of an interview with Ivan just before the latter’s death in 1584. We retain the archaic spelling as it is reproduced in the Hakluyt publication from the original manuscript. Writing of Ivan, Horsey says:468

Carried every daye in his chair into his treasure. One daye the prince beckoned me to follow. I strode emonge the rest venturously, and heard him call for som precious stones and jewells. Told the prince and nobles present before and aboute him the virtue of such and such, which I observed, and do pray I may a littell degress to declare for my own memorie sake.

Facsimile page of Italian vellum manuscript treatise of the virtues of gems. Italian MS. of the Fourteenth Century in author’s library.

Treating of Topaz, Turquoise, Jacinth, Garnet, Chalcedony, Rock-crystal, Coral.

A larger image is available here.

“The load-stone you all know hath great and hidden vertue, without which the seas that compas the world ar not navigable, nor the bounds nor circles of the earth cannot be knowen. Mahomett, the Percians proffit, his tombe of steell hangs in their Repatta at Darbent most miraculously”—Caused the waiters to bringe a chaine of nedells towched by his load-stone, hanged all one by the other.—“This faire currell (coral) and this faire turcas you see; take in your hand; of his natur arr orient coullers; put them on my hand and arm. I am poisoned with disease: you see they shewe their virtue by the chainge of their pure culler into pall: declares my death. Reach owt my staff roiall; an unicorns horn garnished with verie fare diomondes, rubies, saphiers, emeralls and other precious stones that ar rich in vallew; cost 70 thousand marckes sterlinge of David Gower from the fowlkers of Ousborghe.469 Seek owt for som spiders.” Caused his phiziccians, Johannes Lloff, to scrape a circle thereof upon the tabell; putt within it one spider and so one other and died, and some other without that ran alive apace from it.—“It is too late, it will not preserve me. Behold these precious stones. This diomond is the orients richest and most precious of all other. I never affected it; yt restreyns furie and luxurie and abstinacie and chasticie; the least parcell of it in powder will poysen a horse geaven to drinck, much more a man.” Poynts at the ruby. “Oh! this is most comfortable to the hart, braine, vigar and memorie of man, clarifies congelled and corrupt bloud.”—Then at the emerald.—“The natur of the reyn-bowe; this precious stone is an enemye to uncleanness. The saphier I greatlie delight in; yt preserves and increaseth courage, joies the hart, pleasinge to all the vitall sensis, precious and verie soveraigne for the eys, clears the sight, takes awaye bloudshott and streingthens the mussells and strings thereof.”—Then takes the onex in hand.—“All these are Gods wonderfull guifts, secreats in natur, and yet revells [reveals] them to mans use and contemplacion, as frendes to grace and vertue and enymies to vice. I fainte, carie me awaye till an other tyme.”

Some believed that when precious stones were worn to relieve or prevent disease, it was important that the different stones should be worn on different parts of the body. According to one authority, the jacinth should be worn on the neck; the diamond, on the left arm; the sapphire, on the ring-finger; the emerald, or the jacinth, on the index-finger; and the ruby or turquoise, on either the index-finger or the little finger.470 There is, however, little reason to assume that these rules were generally known and observed.

That precious stones not only appealed to the eye by their beautiful colors, but also possessed a fragrant odor, was one of the many fanciful ideas regarding them. If we could believe the following circumstantial account, this was once experimentally proved:471

When precious stones are to be used in medicine, they must be pulverized until they are reduced to a powder so fine that it will not grate under the teeth, or, in the words of Galen, this powder must be as impalpable “as that which is blown into the eyes.” Since this trituration is not usually operated with sufficient care by the apothecaries, I begged a medical student, who was lodging with me, to pass an entire month in grinding some of these stones. I gave him emeralds, jacinths, sapphires, rubies, and pearls, an ounce of each kind. As these stones were rough and whole, he first crushed them a little in a well-polished iron mortar, using a pestle of the same metal; afterward he employed a pestle and mortar of glass, devoting several hours each day to this work. At the end of about three weeks, his room, which was rather large, became redolent with a perfume, agreeable both from its variety and sweetness. This odor, which much resembled that of March violets, lingered in the room for more than three days. There was nothing in the room to produce it, so that it certainly proceeded from the powder of precious stones.

Diamond

Of the many medicinal virtues attributed to the diamond, one of the most noteworthy is that of an antidote for poisons. Strangely enough, the belief in its efficacy in this respect was coupled with the idea that the stone in itself was a deadly poison. The origin of this latter fancy must be sought in the tradition that the place wherein the diamonds were generated—“in the land where it is six months day and six months night”—was guarded by venomous creatures who, in passing over the stones, were wounded by the sharp points of the crystals, and thus embued the stones with some of their venom.472 The attribution of curative properties in case of poisoning arose from association of ideas. The Lapidario of Alfonso X recommends the diamond for diseases of the bladder; it adds, however, that this stone should be used only in desperate cases.

The diamond was also believed to afford protection from plague or pestilence, and a proof of its powers in this direction was found in the fact that the plague first attacked the poorer classes, sparing the rich, who could afford to adorn themselves with diamonds. Naturally, in common with other precious stones, this brilliant gem was supposed to cure many diseases. Marbodus473 tells us that it was even a cure for insanity.

In the Babylonian Talmud we read of a marvellous precious stone belonging to Abraham. This was perhaps a diamond, or possibly a pearl; the accounts vary, and the same word is often used to designate “precious stone” and “pearl.” The following version represents it to be a diamond:474

R. Simeon, ben Johanan said: “A diamond was hanging on Abraham’s neck, and when a sick man looked upon it he was cured. And when Abraham passed away, the Lord sealed it in the planet of the sun.”

The Hindus believed that it was extremely dangerous to use diamonds of inferior quality for curative purposes, as they would not only fail to remedy the disease for which they were prescribed, but might cause lameness, jaundice, pleurisy, and even leprosy. As to the use of diamonds of good quality, very explicit directions are given. On some day regarded as auspicious for the operation, the stone was to be dipped in the juice of the kantakára (Solanum jaquiri) and subjected for a whole night to the heat of a fire made by dried pieces of the dung of a cow or of a buffalo. In the morning it was to be immersed in cow’s urine and again subjected to fire. These processes were to be repeated for seven days, at the end of which term the diamond could be regarded as purified. After this the stone was to be buried in a paste of certain leguminous seeds mixed with asafœtida and rock salt. Herein it was to be heated twenty-one successive times, when it would be reduced to ashes. If these ashes were then dissolved in some liquid, the potion would “conduce to longevity, general development of the body, strength, energy, beauty of complexion, and happiness,” giving an adamantine strength to the limbs.475

An Austrian nobleman, who for a long time had not been able to sleep without having terrible dreams, was immediately cured by wearing a small diamond set in gold on his arm, so that the stone came in contact with his skin.476

The fact that in this case, as in many others, the stone was required to touch the skin, proves that the effect supposed to be produced was not altogether magical, but in the nature of a physical emanation from the stone to the body of the wearer.

We are told that when Pope Clement VII was seized by his last illness, in 1534, his physicians resorted to powders composed of various precious stones. In the space of fourteen days they are asserted to have given the pope forty thousand ducats’ worth of these stones, a single dose costing as much as three thousand ducats. The most costly remedy of all was a diamond administered to him at Marseilles. Unfortunately, this lavish expenditure was of no avail; indeed, according to our modern science, the remedies might have sufficed to end the pope’s life, without the help of his disease.477

The old fancy that the diamond grew dark in the presence of poison is explained by the Italian physician Gonelli as caused by minute and tenuous particles which emanated from the poison, impinged upon the surface of the diamond, and, unable to penetrate its dense mass, accumulated on the surface, thus producing a superficial discoloration. The diamond, being a cold substance, may have condensed moisture from the body, and the one suffering from the poison may have emitted exudations. But this elaborate explanation of a phenomenon which never existed except in the imagination of those who related it is characteristic of Gonelli, who was always ready to elucidate in some similar way any of the marvels recounted in regard to precious stones.478

Emerald

The emerald was employed as an antidote for poisons and for poisoned wounds, as well as against demoniacal possession.479 If worn on the neck it was said to cure the “semitertian” fever and epilepsy.480 The use of the emerald to rest and relieve the eye is the only remedial use of a precious stone mentioned by Theophrastus in his treatise on gems, written in the third century B.C. Alluding to its powers as an antidote for poisons, Rueus asserts481 that if the weight of eighty barley-corns of its powder were given to one dying from the effects of poison, the dose would save his life. The Arabs prized emeralds highly for this purpose, and Abenzoar states that, having once taken a poisonous herb, he placed an emerald in his mouth and applied another to his stomach, whereupon he was entirely cured.482

A certain cure for dysentery also was to wear an emerald suspended so that it touched the abdomen and to place another emerald in the mouth. Michaele Paschali, a learned Spanish physician of the sixteenth century, declared that he had effected a cure of the disease by means of the emerald in the case of Juan de Mendoza, a Spanish grandee, and Wolfgang Gabelchover, of Calw, in Würtemberg, writing in 1603, asserts that he had often tested the virtues of the emerald in cases of dysentery and with invariable success.483

It speaks not a little for the beauty of the emerald that so good a judge of precious stones as Pliny should have pronounced this gem to be the only one that delighted the eye without fatiguing it, adding that when the vision was wearied by gazing intently at other objects, it gained renewed strength by viewing an emerald. So general in the early centuries of our era was the persuasion that the pure green hue of emeralds aided the eyesight, that gem engravers are said to have kept some of them on their work-tables, so as to be able to look at the stones from time to time and thus relieve the eye-strain caused by close application to their delicate task.484

Psellus says that a cataplasm made of emeralds was of help to those suffering from leprosy; he adds that if pulverized and taken in water they would check hemorrhages.485 They were especially commended for use as amulets to be hung on the necks of children, as they were believed to ward off and prevent epilepsy. If, however, the violence of the disease was such that it could not be overcome by the stone, the latter would break.486 Hermes Trismegistus says the emerald cures ophthalmia and hemorrhages. The great Hermes must have had a special preference for this stone, since his treatise on chemistry (peri chemeias) is said to have been found inscribed on an emerald.487

By the Hindu physicians of the thirteenth century the emerald was considered to be a good laxative. It cured dysentery, diminished the secretion of bile, and stimulated the appetite. In short, it promoted bodily health and destroyed demoniacal influences. In the curious phrase of the school the emerald was “cold and sweet.”488

Teifashi (1242 A.D.) believed that the emerald was a cure for hæmoptysis and for dysentery if it were worn over the liver of the person affected; to cure gastric troubles, the stone was to be laid upon the stomach. Furthermore, the wearer was protected from the attacks of venomous creatures, and evil spirits were driven from the place where emeralds were kept.489 The direction to place the stone on the affected part, a recommendation often met with in the treatises on the therapeutic use of ornamental stones, shows that these were believed to send forth emanations of subtle power. Probably enough, the brilliant play of reflected light which proceeds from many of these gems suggested the idea that they radiated a certain curative energy. This theory need not surprise us, for, although it is altogether fanciful in the case of the diamond, ruby, emerald, etc., the newly discovered substance, radium, really possesses the active properties ascribed by old writers to precious stones.

Jade

A stone the therapeutic quality of which was specialized is the jade or nephrite. Strange to say, although there are very few places where this mineral can now be obtained,—the chief sources of supply being the province of Khotan in Turkistan and New Zealand,—in prehistoric times the stone must have been found in many different localities, since axe-heads and other artefacts of jade have been discovered in many lands both of the old and new world.

When the Spaniards discovered and explored the southern part of the American continent, they came across numerous native ornaments and amulets made of jade (jadeite) and brought many of these with them to Europe. The name jade is derived from the Spanish designation, piedra de hijada, meaning literally “stone of the flank,” which is said to have been bestowed on the stone because the Indians used it for all diseases of the kidneys. The name nephrite owes its origin to the same idea. In ancient times jade appears to have been looked upon as a great aid in parturition, and many ingenious conjectures have been advanced as to the connection between this belief and the form of some of the prehistoric objects made of this material. Whether the Spaniards really learned from the Indians that the stone was especially adapted to cure renal diseases, or whether they only suggested this special and peculiar virtue in order to give an enhanced value to their jade ornaments, is a question not easily answered.

An early notice of jade as a remedial agent appears in Sir Walter Raleigh’s account of his travels in Guiana. Treating of a people of “Amazons” said to dwell in the interior of the country, Raleigh says:490

These Amazones have likewise great store of these plates of golde, which they recover by exchange, chiefly for a kinde of greene stone, which the Spaniards call Piedras Hijadas, and we use for spleene stones and for the disease of the stone we also esteeme them: of these I saw divers in Guiana, and commonly every King or Casique hath one, which theire wives for the most part weare, and they esteeme them as great jewels.

By the middle of the seventeenth century the curative powers of jade for the various forms of calculi was very generally admitted. A singular instance is offered us in one of Voiture’s letters. He was a great sufferer from “the stone” and he had received, from a Mademoiselle Paulet, a beautiful jade bracelet. Gratefully acknowledging the receipt of this peculiar gift, he expresses himself in the following frank way, a mixture of indelicacy and gallantry that seems strange to us: “If the stones you have given me do not break mine, they will at least make me bear my sufferings patiently; and it seems to me that I ought not to complain of my colic, since it has procured me this happiness.” The name used for jade by Voiture, “l’éjade,” supplied a missing link in the derivation of our name jade from the Spanish hijada. When the lady’s gift was received by Voiture, some friends chanced to be present, and they were disposed to regard it as a token of love until he assured them that it was only a remedy. It appears that Mlle. Paulet was a fellow sufferer, and, alluding to this, Voiture writes: “On this occasion the jade had for you an effect you did not expect from it, and its virtue defended your own.”491

Renal calculi and poetry do not seem to have much in common, but the following lines freely rendered from an old Italian poem on the subject by Ciri de Pers show that even this unpromising theme is susceptible of poetic treatment:492

As jade was and still is the most favored stone in China, although never found within the boundaries of China proper, it was very naturally accorded wonderful medical virtues. An old Chinese encyclopedia, the work of Li She Chan, and presented by him to the emperor Wan Lih of the Ming dynasty, in 1596, contains many interesting notices of jade. When reduced to a powder of the size of rice grains it strengthened the lungs, the heart, and the vocal organs, and prolonged life, more especially if gold and silver were added to the jade powder. Another, and certainly a pleasanter way of absorbing this precious mineral, was to drink what was enthusiastically called the “divine liquor of jade.” To concoct this elixir equal parts of jade, rice, and dew-water were put into a copper pot and boiled, the resultant liquid being carefully filtered. This mixture was said to strengthen the muscles and make them supple, to harden the bones, to calm the mind, to enrich the flesh, and to purify the blood. Whoever took it for a long space of time ceased to suffer from either heat or cold and no longer felt either hunger or thirst.

Galen (b. ca. 130 A.D.) wrote thus of the green jasper:493

Some have testified to a virtue in certain stones, and this is true of the green jasper, that is to say, this stone aids the stomach and navel by contact. And some, therefore, set the stone in rings and engrave on it a dragon surrounded by rays, according to what King Nechepsos has transmitted to posterity in the fourteenth book (of his works). Indeed, I myself have thoroughly tested this stone, for I hung a necklace composed of them about my neck so that they touched the navel, and I received not less benefit from them than I would had they borne the engraving of which Nechepsos wrote.

Ruby

Sanskrit medical literature as represented by Naharari, a physician of Cashmere, who wrote in the thirteenth century, finds in the ruby a valuable remedy for flatulency and biliousness. Moreover, aside from these special uses, an elixir of great potency could be made from rubies by those who properly understood the employment of precious stones in the compounding of medicines.494 This famous “ruby elixir” may have had little in common with the stone except its color, as such remedies were generally said to have been made by some secret and mysterious process, in the course of which all material evidence of the presence of any precious stone or stones completely disappeared.

Sapphire

One of the earliest specimens of English literature, William Langley’s “Vision of William concerning Piers the Plowman” (written about 1377), contains a mention of the sapphire as a cure for disease:495

Among the rich gifts offered at the shrine of St. Erkinwald, in Old Saint Paul’s, was a sapphire given in 1391 by Richard Preston, “a citizen and grocer of London.” He stipulated that the stone should be kept at the shrine for the cure of diseases of the eyes, and that proclamation should be made of its remedial virtues. St. Erkinwald was the son of Offa, King of the East Saxons, and was converted to Christianity by Melittus, the first bishop of London. In 675 A.D. he himself became bishop of London, being the third to attain that rank after the death of Melittus. His body was interred in the cathedral, and his shrine, which was richly embellished during the reign of Edward III (1327-1377), received many valuable donations.502

The usefulness of the sapphire as an eyestone for the removal of all impurities or foreign bodies from the eye is noted by Albertus Magnus, who writes that he had seen it employed for this purpose. He adds that when a sapphire was used in this way it should be dipped in cold water both before and after the operation.503 This was probably not so much to make the stone colder to the touch as to cleanse it, certainly a very necessary proceeding when the same stone was used by many persons suffering from contagious diseases of the eyes.

Richard Preston’s sapphire appears to have been only one of a class regarded as having special virtue to cure diseased eyes, as is shown by the existence of various other similar sapphires in different parts of Europe. It is not very easy to determine the precise reason—if there be one—which rendered any single sapphire more useful than another in this respect. An entry in the inventory of Charles V notes “an oval Oriental sapphire for touching the eyes, set in a band of gold.”504 Possibly the fact that a particular gem of this kind was used remedially, and was not set for wear as an ornament, may have been the only cause for a belief in its special virtue.

That the sapphire should have been regarded as especially valuable for the cure of eye diseases serves to illustrate the wide-reaching and persistent influence of Egyptian thought, and the curious transformations through which an originally reasonable idea may pass in the course of time. We have already noted that the sapphire of the ancients was our lapis-lazuli, and in the Ebers Papyrus lapis-lazuli is given as one of the ingredients of an eye-wash. This ingredient is believed to have originally been the oxide of copper sometimes called lapis Armenus, a material possessing marked astringent properties, and which might be used to advantage in certain morbid conditions of the eye. Lapis-lazuli, another blue stone, was later substituted because of its greater intrinsic value, its similarity of color rendering it equally efficacious according to primitive ideas on this subject. When, however, in medieval times, the name sapphire came to signify the blue corundum gem known to us by this designation, the special curative virtues of the lapis-lazuli were transferred to this still more valuable stone.

The proper method of applying a sapphire to cure plague boils is given at some length by Van Helmont. A gem of a fine, deep color was to be selected and rubbed gently and slowly around the pestilential tumor. During and immediately after this operation, the patient would feel but little alleviation; but a good while after the removal of the stone, favorable symptoms would appear, provided the malady were not too far advanced. This Van Helmont attributes to a magnetic force in the sapphire by means of which the absent gem continued to extract “the pestilential virulency and contagious poyson from the infected part.”505

Topaz

The use of a topaz to cure dimness of vision is strongly recommended by St. Hildegard. To attain the desired end the stone was to be placed in wine and left there for three days and three nights. When retiring to sleep, the patient should rub his eyes with the moistened topaz, so that this moisture lightly touched the eyeball. After the stone had been removed, the wine could be used for five days.506

A Roman physician of the fifteenth century was reputed to have wrought many wonderful cures of those stricken by the plague, through touching the plague sores with a topaz which had belonged to two popes, Clement VI and Gregory II. The fact that this particular topaz had been in the hands of two supreme pontiffs must have added much to the faith reposed in the curative powers of the stone by those upon whom it was used, and this faith may really have helped to hasten their recovery.507

Bloodstone

A historical instance of the use of the bloodstone to check a hemorrhage is recorded in the case of Giorgio Vasari (1514-1578), the author of the lives of the Italian painters of the Renaissance period. On a certain occasion, when the painter Luca Signorelli (1439-1521) was placing one of his pictures in a church at Arezzo, Vasari, who was present, was seized with a violent hemorrhage and fainted away. Without a moment’s hesitation, Signorelli took from his pocket a bloodstone amulet and slipped it down between Vasari’s shoulder-blades. The hemorrhage is said to have ceased immediately.508

The bloodstone was used as a remedy by the Indians of New Spain, and Monardes notes that they often cut the material into the shape of hearts. This seems a very appropriate form for an object used to check hemorrhages. The best effect was attained when the stone was first dipped in cold water and then held by the patient in his right hand. Of course the application of any cold object would serve to congeal the blood, but the connection with the heart vanishes in the direction to place the stone in the right hand. Monardes states that both Spaniards and Indians used the bloodstone in this way.509

The Franciscan friar Bernardino de Sahagun, a missionary to the Mexican Indians, shortly after the Spanish Conquest, writes that in 1576 he cured many natives who were at the point of death from hemorrhage, a result of the plague, by causing them to hold in the hand a piece of bloodstone. By this means he claims to have saved many lives.510

Robert Boyle, in his “Essay about the Origin and Virtues of Gems” (London, 1672, pp. 177-78), tells of a gentleman of his acquaintance who was “of a complexion extraordinary sanguin,” and was much afflicted with bleeding of the nose. A gentlewoman sent to him a bloodstone, directing him to wear it suspended from his neck, and from the time he put it on he was no longer troubled with his malady. It recurred, however, if he removed the stone. When Boyle objected that this might be a result of imagination, his friend disposed of his objection by relating the instance of a woman to whom the stone had been applied when she was unconscious from loss of blood. Nevertheless, as soon as it touched her, the flow of blood was checked. Boyle states that this stone did not seem to him to resemble a true bloodstone. It may have been that the cold of the stone congealed the blood, or that the flow was checked by exhaustion.