mineral

Quartz (specifically Milky or Rose Quartz)

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: White to pale pink; Luster: Vitreous (glassy); Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Hardness: 7 (Mohs scale)
Color: White to pale pink
Luster: Vitreous (glassy)

Identified April 9, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: White to pale pink; Luster: Vitreous (glassy); Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Formation & geological history

Formed through the cooling of magma or hydrothermal activity. It is the most abundant mineral in the Earth's crust and can be found in almost all geological ages and environments, particularly in pegmatites and veins.

Uses & applications

Used in the manufacture of glass, electronics (piezoelectric properties), abrasives, and as a gemstone for jewelry and home decor. It is also highly valued by mineral collectors for its metaphysical properties.

Geological facts

Quartz is highly resistant to both chemical and physical weathering. It is the primary component of most beach sands. Ancient Greeks believed clear quartz was ice that had frozen so hard it would never melt.

Field identification & locations

Identify in the field by its ability to scratch glass and its lack of cleavage. Look for the 'sugary' or glassy texture on broken surfaces. It is found globally, notably in Brazil, Madagascar, and the United States (Arkansas).

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

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Mineral/Rock

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Metamorphic Rock

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