Gemstone Encyclopedia
Gem Silica or Chrysocolla Chalcedony Information
The vivid greenish blue material known as gem silica is quite rare, and high quality specimens are coveted by collectors and jewelry designers.
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Chalcedony, the beautifully colored cryptocrystalline quartz that could be precisely carved into seals and amulets, was a treasured gem of the ancient world.
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Quartz is ancient, but its green is usually younger than the person wearing it. What prasiolite is, why green amethyst is the wrong name, and how to buy it honestly.
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Cat's Eye Citrine: A Gemstone of Golden Beauty
Cat's Eye Citrine is a captivating gemstone known for its unique chatoyancy, a phenomenon created by fibrous mineral inclusions within the stone. When cut in a cabochon shape, these parallel fibers...
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