Page:A treatise on diamonds and precious stones including their history Natural and commercial.djvu/28

1. SECT.

2. 3

   Ruby—Spinelle and Balais ................................................................................................................................................................................................................................................................................................................................................................................................

   101

3. 4

   Emerald and Aquamarine ................................................................................................................................................................................................................................................................................................................................................................................................

   103

4. 5

   Topaz ................................................................................................................................................................................................................................................................................................................................................................................................

   108

5. 6

   Garnet ................................................................................................................................................................................................................................................................................................................................................................................................

   113

6. 7

   Amethyst, Yellow Crystal, Rock Crystal, Cat’s Eye, Sard or Onyx, Opal and Chrysoprase ................................................................................................................................................................................................................................................................................................................................................................................................

   115

7. 8

   Peridot or Chrysolite ................................................................................................................................................................................................................................................................................................................................................................................................

   127

8. 9.

   Turquois ................................................................................................................................................................................................................................................................................................................................................................................................

   129

9. 10

   Zircon ................................................................................................................................................................................................................................................................................................................................................................................................

   132

10. Tourmaline ................................................................................................................................................................................................................................................................................................................................................................................................

    133

11. Moon-stone, Sun-stone ................................................................................................................................................................................................................................................................................................................................................................................................

    134

12. 11

    On cutting and polishing precious stones ................................................................................................................................................................................................................................................................................................................................................................................................

    135

13. Appendix ................................................................................................................................................................................................................................................................................................................................................................................................

    143

14. Table of Specific Gravity, &c. ................................................................................................................................................................................................................................................................................................................................................................................................

    148

---

ERRATA.

Page 29, line 14, for heliotrope read hemitrope.
Page 68, in the note, for p. 77, read p. 78.
Page 113, line 6, for it read its.