mineral
Small quartz fragment
Quartz (silicon dioxide, SiO₂), possibly milky quartz
AI-generated identification · may be incorrectLikely Mohs hardness 7; white to translucent, vitreous-to-waxy luster, and massive rather than visibly crystalline. Cleavage is absent, with conchoidal fracture; exact properties are uncertain because the specimen is very small and image resolution is limited.
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Physical properties
Likely Mohs hardness 7; white to translucent, vitreous-to-waxy luster, and massive rather than visibly crystalline. Cleavage is absent, with conchoidal fracture; exact properties are uncertain because the specimen is very small and image resolution is limited.
Formation & geological history
Quartz forms in igneous, metamorphic, and sedimentary environments, commonly crystallizing from silica-rich fluids or occurring as veins and grains. Its age cannot be determined from the photograph and may range from recent sediment to ancient bedrock.
Uses & applications
Used in glass, electronics, abrasives, engineered stone, and ornamental collecting; this tiny fragment has negligible commercial value.
Geological facts
The pale appearance is consistent with milky quartz caused by microscopic fluid inclusions or fractures. A glassy look and resistance to scratching help distinguish quartz from softer white minerals.
Field identification & locations
Common worldwide, especially in quartz veins, granites, pegmatites, and alluvial gravels; field identification can be checked by its ability to scratch ordinary glass and resist a steel knife. A hardness or acid test should be performed only if specimen ownership permits.
