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Optical Calcite Sphere 4.8cm
Optical Calcite Sphere, crystal for sale. This gorgeous crystal sphere measures 4.8cm in diameter and displays beautiful rainbows from within. There is evidence that the vikings used Iceland Spar (which is another name for Optical Calcite) for navigation on their ships. You need the highest quality crystals to be able to carve shapes and this Madagascan piece is an excellent example. Ideal for the collector, healer or as an impressive display piece for interior decor.