Collection: Calcite

Calcite, a ubiquitous carbonate mineral, is remarkably diverse in its coloration, appearing in virtually every hue imaginable from its pure colorless or white state to vibrant shades of pink, yellow, orange, green, blue, purple, red, brown, and even black. These extensive color variations are primarily due to the presence of trace mineral impurities or other elements within its chemical structure during formation; for instance, manganese can yield pink, iron can create yellows and browns, while copper is often associated with greens and blues. Beyond its striking visual range, calcite is well-known for its distinct optical properties, such as birefringence (double refraction) in clear varieties like Iceland Spar, and its soft nature (Mohs hardness of 3), making it a fascinating mineral for both collectors and those interested in its varied aesthetic forms.