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calcium & Aragonite
2 H inches
The crystals are short pyramidal to long prismatic crystals containing a vitreous to resinous luster
Orthoceras cephalopods were an ancient mollusk that lived more than 350 million years ago
and purple
Amethyst Obelisk rainbow moonstone calcium & AragoniteAmethyst is a purple variety of quartz that gets its color from irradiation and inclusions of iron in the crystal lattice. Amethyst has been prized for thousands of years as a gemstone, commonly being used in jewelry. Ancient Greeks believed that amethyst prevented the intoxicating effects of alcohol. Amethyst was considered a precious gem until the 18th century when large deposits were discovered in South America. Its Mohs hardness is 7. These pieces
