mineral
Likely milky quartz
Quartz (SiO₂)
AI-generated identification · may be incorrectWhite to pale cream, opaque, with a vitreous-to-waxy luster and irregular fracture; Mohs hardness 7. The image does not show enough detail to confirm crystal form or cleavage.
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Physical properties
White to pale cream, opaque, with a vitreous-to-waxy luster and irregular fracture; Mohs hardness 7. The image does not show enough detail to confirm crystal form or cleavage.
Formation & geological history
If quartz, it formed when silica-rich fluids crystallized in veins or cavities; such quartz occurs in rocks of many geological ages.
Uses & applications
Quartz is used in glass and electronics; attractive pieces are collected or used decoratively.
Geological facts
Quartz has no true cleavage and commonly breaks with a curved, shell-like fracture.
Field identification & locations
The pale, rough piece is consistent with milky quartz, but visual identification is uncertain; a hardness or streak test could help distinguish it from softer white minerals. Quartz is widespread worldwide.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary