mineral
Quartz (specifically Milky or Rose Quartz variant)
Silicon Dioxide (SiO2)
Hardness: 7 on Mohs scale; Color: Translucent white to light pink/peach; Luster: Vitreous (glassy) to waxy; Crystal structure: Trigonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Translucent white to light pink/peach
- Luster
- Vitreous (glassy) to waxy
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Physical properties
Hardness: 7 on Mohs scale; Color: Translucent white to light pink/peach; Luster: Vitreous (glassy) to waxy; Crystal structure: Trigonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65
Formation & geological history
Formed through the cooling of silica-rich magma or from hydrothermal veins. It is one of the most abundant minerals in the Earth's crust and can be found in rocks from virtually every geological age.
Uses & applications
Used in glass manufacturing, electronics (due to piezoelectric properties), construction as an aggregate, and as a semi-precious gemstone in jewelry or for decorative ornamental carvings.
Geological facts
Quartz is chemically and physically very resistant to weathering. It is the primary component of most beach sands. In some cultures, variations like this are believed to have healing properties or represent love.
Field identification & locations
Identify in the field by its hardness (it will easily scratch glass) and lack of cleavage. Common in riverbeds, mountains, and as veins within granite or schist. It does not react with acid, distinguishing it from calcite.
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Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
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
Granite
Granite (Phaneritic intrusive igneous rock)
igneous