Wholesale Iceland Spar (Optical Calcite) Brazil A

PEN-CALCOPT-01 Origin: Brazil Grade: AA Dimensions: Approximately 20-30mm Weight: Between 3 and 5g Origin: Brazil (PANTANAL) Grade: AA = very high Pendant composed of raw optical calcite (Iceland spar) from Brazil, approximately 20-30mm Sold individually. Colors and shapes may vary from one stone to another Iceland spar is a transparent variety of calcite. It is also called Optical Calcite due to its double refraction property. According to some researchers' hypothesis, it is a crystal of this type that could have served as a sunstone for the Vikings.