mineral
Likely milky quartz fragment
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectWhite, opaque to translucent, with a sugary, granular surface and vitreous sparkle. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and uneven to conchoidal fracture; specific gravity is about 2.65.
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Physical properties
White, opaque to translucent, with a sugary, granular surface and vitreous sparkle. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and uneven to conchoidal fracture; specific gravity is about 2.65.
Formation & geological history
If quartz, it likely formed as silica-rich fluid crystallized in a vein or cavity in older igneous or metamorphic rock. The image alone cannot establish its geological age or confirm the identification.
Uses & applications
Quartz is used in glassmaking, electronics, abrasives, and decorative stone; this small rough fragment has little jewelry or industrial value.
Geological facts
Quartz is one of Earth’s most abundant minerals and commonly occurs in veins and many rock types.
Field identification & locations
The bright, rough white appearance is consistent with milky quartz, but the specimen is too small and featureless for confident identification from the photo. A hardness test or closer inspection of fracture surfaces would help distinguish it from other white minerals.
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