What is Tanzanite Stone? An unusual variation within the ubiquitous mineral zoisite, tanzanite, is colored by strontium atoms. Pleochroism, a distinct and potent property, enables…
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Emerald’s Radiant Cousin: The Green Sapphire
What is Green Sapphire Stone? An odd new member of the Sapphire family. The elemental makeup of green sapphires is identical to that of other…
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