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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Weight: 198 grams
Malachite Slab
Opal Ring Size 10
is a very vesicular volcanic (igneous) rock that is typically dark colored
It is often used in jewelry
922g Optical Calcite Freeform TC1985 slices Weight: 198 grams922g Optical Calcite Freeform Approx. Dimensions: 4x3x3 inches Approx. Weight: 922 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
