Fluorite with Barite

specimen number:
2092211

location:
Caldwell Stone Company Quarry, Danville, Boyle Co., Kentucky, USA

description:
Light purple gemmy cubic crystals of fluorite on matrix with bladed white crystals of barite. In good condition with minimal micro-cleaving present.

The Caldwell Stone Company Quarry, located in Danville, Boyle County, Kentucky, is a significant industrial site situated within the Bluegrass region of the state. Geologically, the quarry extracts high-quality limestone from the Middle Ordovician High Bridge Group, specifically the Camp Nelson, Oregon, and Tyrone Formations, which are known for their dense, fine-grained, and chemically pure carbonate layers. This locality is well-regarded by regional mineralogists for producing fine specimens of fluorite, calcite, barite, and occasionally sphalerite, typically found in hydrothermal veins and vugs within the limestone host rock. Historically, the Caldwell Stone Company was incorporated in the mid-1900s and has operated as a family-owned business for several decades, providing crushed stone, agricultural lime, and construction aggregate to the surrounding central Kentucky area. While primarily a commercial quarrying operation, its long-standing presence and the periodic discovery of well-crystallized minerals have made it a notable point of geological interest in the region's mining history.

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