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Rare Perhamite specimen from Ski Pike Quarry, Cobble Hill, West Paris, Maine. Mined by Frank Param and Barry Heath. This is a rare specimen of perhamite. As-Is. Perhamite is a phosphate mineral with the formula Ca3Al7(SiO4)3(PO4)4(OH)3·16.5(H2O). It occurs in rare isolated masses in amblygonite-rich pegmatite deposits throughout the world. It was discovered in platy sheed[clarification needed] form of 1mm hexagonal crystals.[5][6] It was first described in 1977 by P.J. Dunn and D.E. Appleman[7] from pegmatite collected from Bell Pit, Newry, Maine. Other specimens have been found in Kapunda, South Australia, in Silver Coin mine near Humboldt County, Nevada[2] and various locations throughout Europe.[4] Perfect for mineral collectors and enthusiasts.
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