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Dimensions: 4 x 3 x 2 inches
also known as tube-like agate or sagenite
the Universe
His staff can change size
particularly during the late 19th and early 20th centuries
75g Optical Calcite Freeform TC2112 sulfur Dimensions: 4 x 3 x75g Optical Calcite Freeform Approx. Dimensions: 1. 5x0. 75x2. 25 inches Approx. Weight: 75 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
US$ 102.93
US$ 151.14
