mineral
Quartz vein material, likely milky quartz with iron staining
Quartz (SiO₂), possibly with feldspar and iron-oxide staining
AI-generated identification · may be incorrectMostly opaque white to cream, with a glassy-to-dull luster and irregular fracture; quartz hardness is 7 on the Mohs scale and its crystal system is trigonal. The photo does not establish the dark portion’s identity or the specimen’s exact mineral mix.
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Physical properties
Mostly opaque white to cream, with a glassy-to-dull luster and irregular fracture; quartz hardness is 7 on the Mohs scale and its crystal system is trigonal. The photo does not establish the dark portion’s identity or the specimen’s exact mineral mix.
Formation & geological history
Likely formed when silica-rich fluids filled fractures and crystallized as a quartz vein; the image cannot determine its age or precise geological setting.
Uses & applications
Quartz is used in glass, ceramics, electronics, and as a collectible; this rough specimen has no obvious gem-quality material.
Geological facts
Milky quartz appears white because microscopic inclusions and fluid-filled defects scatter light.
Field identification & locations
Look for hardness near 7, no cleavage, and irregular fracture; common in veins and mineralized fractures worldwide. Confirm the dark material separately before identifying it.
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