mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectWhite to translucent, glassy luster with irregular fracture and no obvious cleavage; Mohs hardness 7, trigonal crystal structure, specific gravity about 2.65. The specimen appears massive and weathered, with possible iron-oxide staining.
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Physical properties
White to translucent, glassy luster with irregular fracture and no obvious cleavage; Mohs hardness 7, trigonal crystal structure, specific gravity about 2.65. The specimen appears massive and weathered, with possible iron-oxide staining.
Formation & geological history
Forms when silica-rich fluids crystallize in veins or cavities, commonly in igneous and metamorphic rocks; quartz is widespread and occurs across many geological ages.
Uses & applications
Used as a silica source in glass and ceramics, as an ornamental or lapidary material, and in mineral collections; this rough piece is not gem-grade.
Geological facts
Quartz is one of Earth’s most abundant minerals and is piezoelectric, producing an electric charge under mechanical stress.
Field identification & locations
Identify by its hardness, glassy appearance, and lack of cleavage; common in quartz veins and granitic or metamorphic terrains worldwide. The image alone does not establish its precise locality or associated minerals.
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Undetermined; the image is too blurry for reliable identification
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