mineral
Raw quartz-bearing mineral fragment
Quartz, silicon dioxide (SiO₂), possibly included or matrix-bearing
AI-generated identification · may be incorrectSmall gray-green to translucent fragment with a dull-to-glassy luster and irregular fracture; apparent hardness about 7 if quartz dominates, with no obvious cleavage. The image is insufficient to determine crystal habit or specific gravity.
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Physical properties
Small gray-green to translucent fragment with a dull-to-glassy luster and irregular fracture; apparent hardness about 7 if quartz dominates, with no obvious cleavage. The image is insufficient to determine crystal habit or specific gravity.
Formation & geological history
Likely a natural hydrothermal or igneous mineral fragment; quartz commonly formed from silica-rich fluids or cooling magma over a wide range of geological ages.
Uses & applications
Quartz is used in glass, ceramics, electronics, abrasives, and ornamental specimens; this tiny rough piece has little commercial value.
Geological facts
The gray-green color may result from inclusions such as chlorite, mica, or other alteration minerals rather than quartz itself.
Field identification & locations
Look for glassy translucent edges, conchoidal fracture, and inability to scratch quartz with a steel knife; confirm with hardness, streak, and ideally chemical or microscopic testing. Quartz occurs worldwide, especially in veins and granitic rocks.
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