mineral
Tumbled white stone, likely milky quartz
Quartz (SiO₂), probable; exact identification cannot be confirmed visually
AI-generated identification · may be incorrectOpaque to translucent white with a vitreous-to-waxy surface and rounded, polished shape. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; this small piece’s hardness is not measurable from the image.
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Physical properties
Opaque to translucent white with a vitreous-to-waxy surface and rounded, polished shape. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; this small piece’s hardness is not measurable from the image.
Formation & geological history
If quartz, it formed when silica-rich fluids crystallized in veins or cavities; quartz occurs in rocks of many ages and settings.
Uses & applications
Tumbled quartz is used for inexpensive jewelry, ornaments, and mineral collections; quartz also has major industrial uses in glass and electronics.
Geological facts
Milky appearance commonly results from tiny fluid or gas inclusions that scatter light.
Field identification & locations
Quartz is commonly found worldwide in veins, pegmatites, and many other rocks. Its hardness and lack of cleavage help distinguish it from softer white minerals, but confirmatory tests are needed to rule out alternatives such as calcite.
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Sandstone (with potential mineral staining/concretions)
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Epidote
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metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
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Granite
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Septarian Pebble
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