mineral
Green fluorite (probable)
Fluorite, CaF₂
AI-generated identification · may be incorrectPale green, translucent, vitreous to slightly dull; Mohs hardness 4, cubic crystal structure, and perfect octahedral cleavage. The rough fragment’s color and appearance fit fluorite, though a photo alone cannot confirm identification.
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Physical properties
Pale green, translucent, vitreous to slightly dull; Mohs hardness 4, cubic crystal structure, and perfect octahedral cleavage. The rough fragment’s color and appearance fit fluorite, though a photo alone cannot confirm identification.
Formation & geological history
Forms when fluoride-rich hydrothermal fluids deposit minerals in veins and cavities, often alongside quartz or calcite. Fluorite occurs in rocks of many geological ages.
Uses & applications
Used as an industrial flux and source of fluorine; transparent pieces may be cut for ornaments or jewelry, though its softness limits wearability.
Geological facts
Fluorite commonly fluoresces under ultraviolet light, a property named after the mineral.
Field identification & locations
Common worldwide, including China, Mexico, South Africa, and the United States. Check for softness and cleavage, but avoid destructive tests; similar green minerals can look alike.
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