Iceland spar Calcite cleavage rhomb ex Obodda

Item Description

Iceland spar is a transparent variety of calcite. It cleaves readily into rhombs, such as this piece. The measurements are edge-to-edge. This water-clear cutie is remarkable for the beautiful rainbow effect and for double refraction (the decomposition of a ray of light into two rays). Excellent material from Chihuahua, Mexico and from the Herb Obodda dealer stock.