Ozark-Mahoning Mine, Cave-In-Rock, Hardin Co., Illinois
Size: 9.5x9.1x8.1 cm
Largest crystal size: 49 mm


Here's a small cabinet specimen of rich yellow fluorite showing purple and light blue phantoms near the edges. This crystal cluster comes from the historic Southern Illinois Fluorspar District, one of Americas most famous fluorite localities. The label that came with the specimen didn't specify a particular mine but with research it appears to be from the Minerva #1 Mine, if this is a fact then it would have been extracted in the 1980s or early 1990s. There is some bruising on the specimen, this does not distract too much from the great zoning, and wonderfully concave, slightly, hoppered faces. The specimen also contains minor pyrite inclusions and hydrocarbon inclusions (only visible under UV, see pic). We don't come by yellow fluorite like this very often!

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