A Hand-book of Precious Stones

	PAGE
What are Precious Stones?	7
Physical Characters—
Crystallization	10
Cleavage	10
Fracture	11
Optical Properties—
Refraction	12
Polarization of Light	13
Pleiochroism	14
Colors	15
Lustre	17
Streak	18
Hardness	19
Specific Gravity	21
Weight	27
Fusibility	28
Magnetism	30
Transparency	30
Phosphorescence	31
Electricity	31
Cutting and Polishing	32
Diamond	35
Corundum	39
The Ruby	40
Sapphire	43
Fancy Sapphires	44
Star Sapphires	45
Spinel	46
Beryl	50
Emerald	51
Beryl	53
Chrysoberyl	54
Cymophane	56
Alexandrite	56
Zircon	58
Turquois	60
Tourmaline	64
Opal	69
Pearl	71
Chrysolite	78
Garnet	80
Topaz	84
Apatite	87
Felspar	88
Moonstone	89
Sunstone (Avanturine Felspar)	90
Amazon Stone (Green Felspar)	91
Labradorite	91
Cyanite	93
Lapis Lazuli	94
Hiddenite	95
Spodumene	96
Dichroite	97
Idocrase	98
Euclase	99
Sphene	100
Phenacite	101
Epidote	101
Axinite	102
Diopside	103
Fluor Spar	104
Hypersthene	105
Quartz	106
Crystallized Quartz	109
Amethyst	110
Yellow Quartz	111
Cairngorm, etc	111
Rose Quartz	113
Avanturine	114
Cat’s-Eye	114
Crocidolite	115
Heliotrope	116
Chrysoprase	117
Prase	117
Plasma	118
Chalcedony	118
Agates	119
Onyx or Agate Onyx	120
Carnelian	122
Jasper	123
False Lapis	124
Hematite	124
Obsidian	125
Malachite	126
Jet	128
Amber	128
Coral	130
Table of Hardness and Specific Gravity	132
Index	135

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