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Iceland Spar, Clear Optical Calcite / 1 piece 1.5"-2"


    Product Description

    Iceland Spar, Clear Optical Calcite / Amazing

    An optically clear form of calcite, originally from Iceland, but may occur anywhere.
    Originally reported from Helgustadir Mine, Eskifjord, Iceland. Clear (Iceland Spar) variety displays an optical illusion called double refraction - when you look through the crystal, it splits the light rays in two, producing a double image.

     Picture is example only  


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