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Useful Knowledge: Volume 1. Minerals / Or, a familiar account of the various productions of nature cover

Useful Knowledge: Volume 1. Minerals / Or, a familiar account of the various productions of nature

Chapter 3: EXPLANATION OF THE PLATES OF THE FIRST VOLUME.
By William Bingley
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About This Book

A practical, illustrated introduction to minerals and mineralogy aimed at general readers, combining brief question-style definitions with expanded explanations of formation, properties, and human uses. It surveys mineral deposits, strata and veins, crystal forms and rock types, and explains descriptive methods and a numbered cross-referencing system that links related terms. Engraved plates depict crystals, sections of strata, and mineral deposits to support the text. Emphasis is placed on plain language and compact presentation so that readers can use the volume as a convenient reference for identifying materials and understanding their practical applications without requiring prior technical training.

EXPLANATION OF THE PLATES
 
OF THE
 
FIRST VOLUME.

FRONTISPIECE.
This is explained in pages 236, 237.
PLATE I.
Fig. MINERAL DEPOSITS.
1. Horizontal beds or strata.
  a. Veins or dykes.
2. Bending strata.
3. Minerals in detached masses.
4. Disjoined strata.
  b. A fault.
PLATE II.
CRYSTALS, &c.
5. Octohedron.
6. Rough diamond.
7. Profile of a brilliant-cut stone.
8. Profile of a rose-cut stone.
9. Plane of a table-cut stone.
10. Plane and profile of the Pitt diamond.
11. Dodecahedron.
12. Rough garnet.
13. Six-sided pyramids, joined base to base.
14 Regular four-sided prism.
15. Six-sided prism.
16. Cube.
17. Four-sided pyramid having a rhomb for its base.
PLATE III.
SECTION OF ROCKS.
I. Primitive Rocks.
Fig.  
1. Granite.
2. Gneiss.
3. Mica-slate.
4. Clay-slate.
  a. Lime-stone.
  b. Quartz.
5. Primitive lime-stone.
II. Secondary Rocks.
1. Transition Rocks.
6. Grey-wacka.
7. Transition lime-stone.
2. Floetz Rocks.
8. Old red sand-stone.
9. Alternating strata of lime-stone and sand-stone.
III. Alluvial Deposits.
10. Alluvial strata of clay, gravel, &c., &c.

The BINDER is desired to insert all the Plates, except the Frontispieces, immediately after the Explanations in the respective Volumes.

Pl. 1. Vol. I.
J. Shury. sculp.
Sections of Strata &c.

Pl. 2. Vol. I.
CRYSTALS &c.

Pl. 3. Vol. I.
Section of Rocks. J Shury sculp.

USEFUL KNOWLEDGE.