Fluorite

specimen number:
1822123

location:
Tule Mine, Melchor Muzquiz, Coahuila, Mexico

description:
Classic Mexican fluorite specimen with lustrous and gemmy attractive purple crystals to 2.5 cm on edge covering the top of matrix. This shows smaller secondary growths throughout typical of the locality. In very good condition.

Melchor Muzquiz, located in the northern Mexican state of Coahuila, features a regional geology characterized by extensive sedimentary formations, predominantly limestone and dolostone, influenced by regional tectonic activity and hydrothermal mineralization processes. Mining operations in the area, particularly at notable sites like the local Tule Mine, have historically targeted rich mineral deposits formed within these carbonate host rocks. The region is especially renowned among mineral collectors for producing exceptional specimens of fluorite, often found alongside gypsum, celestine, or quartz. The local fluorite typically exhibits striking cubic or modified crystal habits, featuring vibrant color zoning ranging from deep purple and lilac to clear or light blue-gray cores, driven by the circulation of mineral-rich fluids through fault zones and cavities over millions of years.

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