Fluorite

specimen number:
8911121

location:
Okorusu Mine, Otjiwarongo, Otjozondjupa, Namibia

description:

Glassy deep green gemmy crystals of fluorite measuring to 1.3 cm on edge across the front of her matrix. Some purple color is present throughout. In good condition. The specimen comes with a previous label from the Alton collection.

The Okorusu Mine in the Otjozondjupa region of Namibia has a history spanning intermittent periods from around 1920 until its commercial closure in October 2014, operating through various corporate phases under owners like Iscor and Solvay before transitioning to care and maintenance. Geologically, the deposit is situated within an alkaline igneous-carbonatite ring complex where intense hydrothermal activity drove fluorine-rich fluids to replace pegmatitic carbonatites, fenites, and surrounding marble host rocks, creating world-renowned concentrations of high-quality fluorite.

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