GemstonesDesigned for beginners and experienced collectors alike, these field guides make identification of individual specimens sure, simple and straightforward. Each entry has a full color illustration as well as color-coded bands that provide at-a-glance facts for quick reference. Easy to use and beautiful to look at, this series is an invaluable resource for every collector. |
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Common terms and phrases
agate aluminum silicate amber amethyst aquamarine Australia Bead birefraction blue Brazil BRILLIANT CUT brown Cabochon Cabochon Cameo carved cat's-eye CHALCEDONY chrysoberyl collectors colorless coral corundum Crystal structure Crystal structure Cubic Crystal structure Monoclinic Crystal structure Orthorhombic Crystal structure Trigonal CRYSTALS IN MATRIX cut en cabochon dark DEMANTOID diamond emerald faceted FLUORITE former USSR fracture garnet Gem-quality gemstones gold green color grossular Hardness 72 Hexagonal imitate inclusions iridescence ivory jewelry lapis lazuli localities include luster Luster Vitreous Hardness Madagascar massive material mineral MIXED CUT Monoclinic Myanmar OCCURRENCE OCTAGONAL STEP CUT opal opaque ORTHOCLASE Orthorhombic oxide pale pearls pegmatites Pendeloque perfect cleavage pink pleochroic prisms pyrite quartz rare REMARK rock crystal ruby rutile sapphire SG RI DR Silicon dioxide silver SINHALITE soft spinel Sri Lanka structure Orthorhombic Composition structure Trigonal Composition surface synthetic topaz tourmaline translucent transparent Triclinic Trigonal turquoise usually variety vitreous luster yellow zircon