Optical Calcite, (Sun Stone) Iceland Spar.


5 in stock


Optical Calcite, (Sun Stone) Iceland Spar. Calcium Carbonate: CaCo3 Hardness: 3 Source: Mexico Vikings' legendary sólarsteinn (Sunstone) mentioned in the 13th-century Viking saga of Saint Olaf. was used by the Vikings to navigate without a compass. Now scientists have proved that using the polarising effect of Optical Calcite (Iceland Spar) you can place the suns position within 5 degrees allowing the Vikings to cross oceans without a magnetic compass even in fog or cloud. Prices start from £5 for a small cube all the way to £85 for a large Golden Optical Cube