mineral
Rough pale-green mineral specimen, likely fluorite
Fluorite (CaF₂), tentative visual identification
AI-generated identification · may be incorrectTranslucent pale green with vitreous luster and blocky, cleavage-like faces. Fluorite has Mohs hardness 4 and cubic crystal structure; the photo alone does not confirm the identification.
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Physical properties
Translucent pale green with vitreous luster and blocky, cleavage-like faces. Fluorite has Mohs hardness 4 and cubic crystal structure; the photo alone does not confirm the identification.
Formation & geological history
Fluorite typically crystallizes from hydrothermal fluids in veins and cavities, across many geological ages. The specimen’s locality and age cannot be determined from the image.
Uses & applications
Used as an industrial source of fluorine and as a flux; attractive pieces are collected or cut for display and jewelry.
Geological facts
Fluorite commonly shows prominent octahedral cleavage and may fluoresce under ultraviolet light.
Field identification & locations
Compare its softness (it can be scratched by a steel nail) and cleavage with a known specimen; calcite and other pale minerals can look similar. Common deposits occur worldwide, including China, Mexico, and the United States.
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