Calcite with fluorite

Both calcite (calcium carbonate) and fluorite (calcium fluoride) are common species worldwide, but it is the shape, colour, size and combination that make this specimen very special. The contrasting shapes and colours of this crystal group with purple fluorite cubes and a pointed (scalenohedral) golden yellow calcite crystal makes this an extremely attractive and three-dimensional specimen.

The Elmwood Mine, discovered in 1969, became well-known internationally for producing fine specimens of calcite, fluorite and sphalerite. It is a replacement orebody in limestone, known as a ‘Mississippi Valley type’ deposit.

This specimen was selected for a special 3D interactive rendering in the Australian Museum’s former Uncovered exhibition.

Fluorite with calcite

Elmwood Mine, Tennessee, USA. 14 x 17 x 13 cm. Registered 1984. D.47931.