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.
Each piece of optical calcite is approximately 1.5"-2" x 1.5"-2"; Sizes and shapes will vary slightly, each piece is unique.
Every piece is polished on all sides and faces to exemplify natural light refraction and rainbows throughout the calcite.
Picture is example only / This listing is for one (1) piece.
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