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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Weight: 55 grams
It gets its name from the ancient Greek term Botrys
Dimensions: 9x4x4
Natural pink amethyst geode from the Colli Cura Mine
Weight: 252 grams
86g Optical Calcite Freeform TC2101 carving Weight: 55 grams86g Optical Calcite Freeform Approx. Dimensions: 1. 25x1x2 inches Approx. Weight: 86 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
US$ 26.50
US$ 123.61
US$ 498.54