Dimensions: approximately 2.75” L x 2.25” W x 2” H
Also known as "Iceland spar", optical calcite is a transparent variety of calcite, or crystallized calcium carbonate, originally brought from Iceland, and used in demonstrating the polarization of light. It occurs in large readily cleavable crystals, easily divisible into rhombs, and is remarkable for its double refraction.
Dimensions: approximately 5" L x 2" W Beautiful amethyst cluster with deep purple hues. Amethyst is a form of quartz that contains iron and other trace...View full product details
Dimensions: approximately 3.25" L x 1.25" W Beautiful citrine generator crystal with deep golden hues and sparkling rainbows inside. Fully polished and self standing. This...View full product details
Dimensions: approximately 3” L x 2” W x 2.15” H Powerful clear apophyllite cluster with sharp pyramidal points. Contains little pinkish bits of the zeolite mineral...View full product details