mineral
Quartz cluster (likely milky quartz)
Quartz, silicon dioxide (SiO₂), trigonal crystal system
AI-generated identification · may be incorrectWhite to translucent, glassy-to-dull luster, with irregular crystalline surfaces; Mohs hardness 7, no cleavage, and specific gravity about 2.65. The small brown areas may be iron-oxide staining or attached matrix.
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Physical properties
White to translucent, glassy-to-dull luster, with irregular crystalline surfaces; Mohs hardness 7, no cleavage, and specific gravity about 2.65. The small brown areas may be iron-oxide staining or attached matrix.
Formation & geological history
Quartz commonly crystallizes from silica-rich hydrothermal fluids or grows in cavities and veins; its age depends on the host deposit and cannot be determined from the image.
Uses & applications
Used in jewelry, ornaments, collecting, and industrial applications such as glassmaking and electronics.
Geological facts
Quartz is one of Earth’s most abundant minerals and occurs in many colors and crystal habits.
Field identification & locations
The specimen appears to be a small, rough quartz cluster, but the image does not show diagnostic crystal faces clearly enough to confirm the identification. Quartz is common worldwide; a glass scratch test can help distinguish it from softer look-alikes.
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