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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Reserve from the case
Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Dimensions: 3x1x0
Scoria is a low density rock but
From the Chibuku Mine in Zimbabwe
Dimensions: 3 x 1
this purple fluorite specimen has exceptional blue fluorescence
84g Optical Calcite Freeform TC2115 citrine Dimensions: 3x1x084g Optical Calcite Freeform Approx. Dimensions: 1. 25x1. 25x1. 75 inches Approx. Weight: 84 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
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