mineral

Quartz Druze (Crystalline Quartz)

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Clear to milky white/light tan; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Clear to milky white/light tan
Luster: Vitreous (glassy)

Identified March 27, 2026More mineral →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Hardness: 7 (Mohs scale); Color: Clear to milky white/light tan; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed through hydrothermal processes where silica-rich fluids precipitate in rock cavities or veins. This specimen shows a druzy clusters of macro-crystals likely formed in a volcanic or sedimentary pocket.

Uses & applications

Used in gemstone production, decorative aquarium/home decor, and as a raw source of silicon for electronics; highly prized by mineral collectors.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. This specific 'druzy' formation refers to the coating of crystals onto a rock surface.

Field identification & locations

Identify by its ability to scratch glass and its distinct six-sided terminations. Found globally, especially in regions with igneous activity or sandstone formations.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral