Very rare very large calcite from Tennessee, USA

A very large calcite from Tennessee, USA. The exceptional block size and material clarity make the piece a mineralogically outstanding collector's item of top gemological classification.

Calcite (CaCO₃) crystallizes in many different habits, from scalenohedra to rhombohedra to columnar forms. The deposits in Tennessee are world-renowned for particularly large, clear calcite crystals from Paleozoic karst caves.

Material of this block size is exceptional for calcite. Collector calcites are usually significantly smaller. The Tennessee deposits in the Elmwood region supply the highest quality large-format material worldwide.

The classification reflects the combination of block size, premium deposit provenance, and crystal quality. Such pieces are rare in the international collector's market and are traded internally by museums.

A museum-worthy collector's item with documented Tennessee provenance and top gallery dimensions.