Cadmitis differs only from the stone that is known as ostracitis3255 in being sometimes surrounded with blisters of an azure colour. Callais3256 is like sapphiros3257 in colour, only that it is paler and more closely resembles the tint of the water near the sea-shore in appearance. Capnitis,3258 in the opinion of some, is a peculiar species of stone: it is covered with numerous spiral streaks, of a smoky colour, as already3259 stated in the appropriate place. Cappadocia3260 is a native of Phrygia, and resembles ivory in appearance. Callaica3261 is the name given to a stone like a clouded callaina;3262 a number of them are always found united, it is said. Catochitis3263 is a stone found in Corsica, of larger size than the other precious stones; and of a more wonderful nature, if the story is true, that it retains the hand like gum, when placed upon it. Catoptritis3264 is found in Cappadocia, and, from its whiteness, reflects figures like a mirror. Cepitis3265 or cepolatitis is a white stone, with veins upon it uniting together. Ceramitis3266 has a colour like that of earthenware.

Cinædia3267 is a stone found in the brain of a fish3268 of a corresponding name. It is white and oblong, and possessed of marvellous virtues, if we are to put faith in what is said, that it announces before-hand whether the sea will be tranquil or stormy.3269 Ceritis3270 is a stone like wax: circos3271 resembles the plumage of the hawk: corsoides3272 is like white hair in appearance. Coralloachates3273 is very similar to coral, marked with drops of gold; and corallis, a native of India and Syene, resembles minium3274 in appearance. Crateritis3275 is in colour a medium between chrysolithos3276 and amber, and is remarkable for its hardness. Crocallis3277 is a gem like the cherry in its tints. Cyitis3278 is a stone found in the vicinity of Coptos; it is white, and to all appearance has an embryo stone within, the rattling of which may be heard on shaking it. Chalcophonos3279 is a black stone, but when struck it clinks like brass: tragic actors are recommended to carry it about them. Of chelidonia3280 there are two varieties, both resembling the swallow in colour: one of them is purple on one side, and the other is purple besprinkled with black spots. Chelonia3281 is the eye of the Indian tortoise, and is the most marvellous of all the stones, if we believe the lying stories told by the magicians. For, according to them, this stone, placed upon the tongue after rinsing the mouth with honey, will ensure power of divination, if this is done at full moon or new moon, for one whole day. If, however, this plan is adopted while the moon is on the increase, the power of divination will be acquired before sun-rise only, and if upon other days, from the first3282 hour to the sixth.

Chelonitis,3283 too, is a stone that resembles the tortoise3284 in appearance, and the many virtues of which are talked of for calming storms and tempests. As to the one that has all the appearance of being sprinkled with spots of gold, if thrown with a scarabæus into boiling water, it will raise a tempest, they say. Chloritis3285 is a stone of a grass-green colour: according to the magicians, it is found in the crop of the motacilla,3286 being engendered with the bird. They recommend also that it should be set in iron, for the purpose of working certain portentous marvels which they promise, as usual. Choaspitis is a stone so called from the river Choaspes,3287 of a brilliant, golden colour mixed with green. Chrysolampis3288 is a native of Æthiopia, and is pale by day, but of a fiery lustre by night. Chrysopis3289 has all the appearance of gold.3290 Ceponides3291 is found at Atarna, a borough, and once a city, of Æolis. It is transparent, presents numerous tints, and has sometimes the appearance of glass, sometimes of crystal, and sometimes of iaspis. Indeed, the stones of this kind that are tarnished even, are possessed of such singular brilliancy as to reflect objects like a mirror.