Calcite

Calcite: a remarkable variety of crystal formations

Calcite is a mineral composed of calcium carbonate (CaCO₃), valued by collectors for its wide variety of shapes and colours. Its crystals can be rhombohedral, scalenohedral — the famous "dogtooth" crystals — or form twins. Some calcite crystals occur individually, while others grow on a matrix or alongside minerals such as fluorite, quartz and amethyst.

The calcite minerals available for sale are displayed further down this page.

Our selection includes calcites from the Gard region in France, Madan in Bulgaria, Brazil, Namibia and Congo. Available localities may vary as pieces are sold and new specimens arrive. These minerals stand out for their transparency, well-defined crystals and mineral associations. Every piece is accompanied by photographs and a video, allowing collectors to examine it before making their choice.

Calcite has a hardness of 3 on the Mohs scale. As a relatively soft mineral, it requires careful handling and should be protected from acidic substances.

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