Prehnite
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Physical & Optical Properties
Mohs Hardness
Crystal System
Value & Market
Where to Buy Prehnite
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About Prehnite
Prehnite is a pale yellow-green to apple-green phyllosilicate mineral with a characteristic translucent to transparent appearance and a waxy to vitreous luster. It was the first mineral to be named after a person — Colonel Hendrik von Prehn who brought specimens from South Africa to Europe in the 18th century. Fine cabochons cut from prehnite often reveal a subtle cat's eye or internal cloud-like appearance, adding to its appeal in designer jewelry.