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The following is a partial list of the colors of precious stones:
Shades of White.--Quartz, opal, chalcedony.
Shades of Gray.--Labrador, smoky topaz, chalcedony, zircon.
Black.--Obsidian, tourmaline, jet.
Shades of Blue.--Lapis-lazuli, amethyst, chalcedony, spinel, zircon, sapphire, cyanite, tourmaline, turquois, odontolite, fluor spar.
Shades of Green.--Amazon stone, turquois, prase, beryl, bloodstone, epidote, emerald, malachite, chrysoprase, chrysolite, idocras, olivine, garnet, chrysoberyl.
Shades of Yellow.--Opal, amber, topaz, beryl, jasper.
Shades of Red.--Garnet, carnelian, chalcedony, rose quartz, corundum, tourmaline, spinel, ruby.
Shades of Brown.--Zircon, garnet, smoky topaz, axinite, jasper.
Colorless.--Diamond, sapphire, spinel, zircon, topaz, rock crystal, moonstone. |
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Precious Stones Guide Vol 1
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