mineral
Quartz crystal cluster on matrix
Quartz (SiO₂), likely a drusy quartz coating on an unidentified rock matrix
AI-generated identification · may be incorrectTiny colorless to white crystals with a glassy luster and uneven fracture; quartz has Mohs hardness 7 and a trigonal crystal structure. The matrix and specimen are too small to identify precisely from the image.
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Physical properties
Tiny colorless to white crystals with a glassy luster and uneven fracture; quartz has Mohs hardness 7 and a trigonal crystal structure. The matrix and specimen are too small to identify precisely from the image.
Formation & geological history
Quartz commonly forms when silica-rich fluids deposit crystals in rock cavities or fractures; the specimen’s geological age and specific setting cannot be determined from the image.
Uses & applications
Quartz is used in glassmaking, electronics, and jewelry; small clusters are mainly collected or displayed.
Geological facts
The sparkling surface appears to consist of many small crystals rather than a single crystal.
Field identification & locations
Look for a hard, glassy surface that can scratch ordinary glass; quartz is widespread in many rock types. The image does not show enough detail to identify the matrix or locality.
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