CONTENTS. VII 



3. Descriptive catalogue of the collections Continued. Page. 



Serpentine 95 



Bowenite 96 



Satelite 96 



Williamsite 96 



Smithsonite 96 



Sodalite 97 



Sphalerite 97 



Spinel 98 



Spodumene 100 



Hiddenite 101 



Kunzite 101 



Staurolite 101 



Thomsonite 102 



Titanite 103 



Topaz 103 



Tourmaline 107 



Turquoise 113 



Variscite 115 



Vesuvianite 116 



Californite 116 



Wernerite 117 



Willemite 117 



Zircon 118 



Zoisite: Thulite 119 



Miscellaneous 120 



Granite 120 



Huntilite 120 



Porphyry 120 



4. Supplemental collections 121 



1. Rough and cut stones 121 



2. Imitation stones 125 



3. Artificial or synthetic stones 126 



4. Models showing forms into which stones are cut 127 



5. Small ornamental objects not used for personal adornment 127 



6. Occurrence and association of precious stones 1 34 



(1) Miscellaneous series 134 



(2) Diamond-bearing rocks of South Africa 134 



(3) Granite-pegmatites and their associated minerals 136 



A. The Appalachian pegmatites 137 



B. The Mesa Grande, California, pegmatites 138 



Appendices: 



1. The cutting of gem stones 141 



2. Gems mentioned in the Bible 147 



3. Mystical properties of gems 151 



Birth stones 152 



4. Gem and mineral names 179 



5. Industrial uses of precious stones 205 



6. Tables for the identification of precious stones 209 



7. Statistics of production 215 



8. Selected bibliography 217 



