mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectWhite to translucent, massive and coarse-looking with a vitreous-to-dull luster; Mohs hardness 7, specific gravity about 2.65, trigonal crystal structure, and no cleavage (it breaks with uneven or conchoidal surfaces).
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Physical properties
White to translucent, massive and coarse-looking with a vitreous-to-dull luster; Mohs hardness 7, specific gravity about 2.65, trigonal crystal structure, and no cleavage (it breaks with uneven or conchoidal surfaces).
Formation & geological history
Likely a massive quartz vein or quartz-rich rock formed when silica-rich fluids filled fractures and crystallized. Quartz occurs in rocks of many ages, so the specimen’s age cannot be determined from the image.
Uses & applications
Commonly used as a silica source in glass and ceramics; attractive pieces are collected or used decoratively, though this specimen appears uncut and ordinary.
Geological facts
Quartz is among Earth’s most abundant minerals and is highly resistant to weathering.
Field identification & locations
Its white, massive appearance is consistent with milky quartz, but the image alone cannot rule out other pale minerals. Look for hardness sufficient to scratch glass and absence of cleavage; common sources include quartz veins worldwide.
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