mineral
Quartz (likely Rose Quartz or Milky Quartz)
Silicon Dioxide (SiO2)
Hardness: 7 (Mohs scale); Color: Pink to translucent white; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65
- Hardness
- 7 (Mohs scale)
- Color
- Pink to translucent white
- Luster
- Vitreous to waxy
Identified More mineral →
Explore Quartz (likely Rose Quartz or Milky Quartz) in the encyclopedia →Identify your own rocks.
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Physical properties
Hardness: 7 (Mohs scale); Color: Pink to translucent white; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65
Formation & geological history
Formed in pegmatites or hydrothermal veins as magma cools or from hot aqueous solutions. It is found in abundance across all geological ages, primarily in igneous and metamorphic environments.
Uses & applications
Used in glassmaking, electronics (piezoelectric properties), jewelry, and as a popular collector's mineral. Rose quartz specifically is used for ornamental carvings and lapidary work.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Rose quartz gets its pink hue from trace amounts of titanium, iron, or manganese, or microscopic inclusions of aluminum-containing borosilicate.
Field identification & locations
Identified in the field by its hardness (it will easily scratch glass or a steel knife) and its lack of cleavage. It is found globally in riverbeds, mountains, and mines.
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Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock