Rock Identifier
Quartz (specifically Milky or Rose Quartz variant) (Silicon Dioxide (SiO2)) — mineral
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
Identified More mineral

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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.