mineral
Likely rough quartz (possibly milky quartz)
Quartz, SiO₂
AI-generated identification · may be incorrectPale gray-white with glassy to slightly dull luster and irregular fracture; quartz has hardness 7, a trigonal crystal structure, and no cleavage. The small, partly translucent specimen cannot be identified confidently from the image alone.
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Physical properties
Pale gray-white with glassy to slightly dull luster and irregular fracture; quartz has hardness 7, a trigonal crystal structure, and no cleavage. The small, partly translucent specimen cannot be identified confidently from the image alone.
Formation & geological history
Quartz crystallizes from silica-rich magma or hydrothermal fluids and also occurs in veins and many rock types; it forms across a wide range of geological ages.
Uses & applications
Quartz is used in glassmaking, electronics, and construction; attractive crystals and specimens are collected or used in jewelry.
Geological facts
Quartz is one of Earth’s most abundant minerals and commonly forms hexagonal crystals, though this piece shows no clearly visible crystal faces.
Field identification & locations
Look for hardness near 7, glassy luster, and lack of cleavage; it commonly occurs in veins and granitic rocks worldwide. The image does not establish the exact variety or locality.
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