Emerald: The precious green gemstone Emerald .
Detailed gem and jewelry information guide about the green beryl gemstone emerald. ... Very pale colored stones ... Synthetic Emeralds are also sold to unwary buyers ...
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Detailed gem and jewelry information guide about the green beryl gemstone emerald. ... Very pale colored stones ... Synthetic Emeralds are also sold to unwary buyers ...
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Texas gemstones 18 Amber _ 18 Augite 18 ... Gadolinite 21 Garnet 22 Jet 22 Labradorite 23 Microcline 23 Obsidian 24 Opal _ 24 Pearl _ 24 Quartz 25 ... (SiO.
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Polariscope. With the use of a polariscope one can find the typical "bull''s eye" for quartz, but that can be seen in both twinned natural stones as in many twinned ...
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Tanzanite is a rare blue gem and a popular alternative to blue sapphire. It is mined commercially at only one location in Tanzania.
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SiO 2: Etymology: From the Ancient ... Stones that present plantlike patterns are called moss agates. ... For information on synthetic quartz in general, ...
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