mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectLikely a rough, pale translucent-to-opaque quartz fragment with a glassy to dull luster and no visible cleavage; hardness 7 Mohs, trigonal crystal system, specific gravity about 2.65. The image is not detailed enough to confirm the identification.
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Physical properties
Likely a rough, pale translucent-to-opaque quartz fragment with a glassy to dull luster and no visible cleavage; hardness 7 Mohs, trigonal crystal system, specific gravity about 2.65. The image is not detailed enough to confirm the identification.
Formation & geological history
Quartz commonly crystallizes from silica-rich fluids in veins and cavities, or occurs in igneous and metamorphic rocks; specimens may be of many geological ages.
Uses & applications
Used in glassmaking, electronics, abrasives, and construction; attractive pieces are collected or cut for decorative objects and jewelry.
Geological facts
Quartz is among Earth’s most abundant minerals and fractures conchoidally rather than breaking along cleavage planes.
Field identification & locations
Check for hardness (it can scratch glass) and conchoidal fracture; common worldwide, especially in quartz veins and pegmatites. A photo alone cannot reliably distinguish quartz from other pale minerals.
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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