mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 Mohs; Color: White to off-white/cream; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65
- Hardness
- 7 Mohs
- Color
- White to off-white/cream
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 Mohs; Color: White to off-white/cream; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65
Formation & geological history
Formed during the final stages of hydrothermal mineralisation within veins or in igneous pegmatites. The milky appearance is caused by tiny liquid or gas bubble inclusions trapped during crystal growth.
Uses & applications
Used in glassmaking, as an abrasive, in electronics for its piezoelectric properties, and widely in landscaping and gravel.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Milky quartz is the most common variety of crystalline quartz.
Field identification & locations
Identified by its hardness (scratches glass), white color, and lack of cleavage. Often found in riverbeds or as veins in mountain ranges.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
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