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This is a completely natural quartz cluster from Diamantina that exhibits great clarity and luster typical of quartz from this locality
Aventurine is most commonly found in green
Purple Rain Pocket Fluorite with Galena
(Source: Utah Geological Survey)
Prehnite on Epidote Stalactite
64g Optical Calcite Freeform TC2139 ganesha This is a completely natural64g Optical Calcite Freeform Approx. Dimensions: 1. 25x1x2. 25 inches Approx. Weight: 64 grams Locality: Maharashtra, India Optical calcite is also referred to as Iceland Spar because of its first discovery in Eskifjord, Iceland. It is typically colorless, and exhibits the optical phenomenon of double refraction where an object viewed through the calcite will appear doubled. Double refraction, or birefraction, is also called birefringence and is also
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