mineral

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Colorless to white; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Hardness: 7 (Mohs scale)
Color: Colorless to white
Luster: Vitreous

Identified July 21, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: Colorless to white; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich magma or from hydrothermal veins. This specimen shows typical prismatic growth from a pegmatite or hydrothermal cavity.

Uses & applications

Used in electronics (oscillators), optical instruments, glass making, abrasives, jewelry (as a gemstone), and widely collected by mineral enthusiasts.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. It is piezoelectric, meaning it generates an electric charge in response to mechanical stress.

Field identification & locations

Identify by its six-sided prismatic crystals terminating in pyramids and its ability to scratch glass. Found globally, with major deposits in Brazil and Arkansas, USA. Collectors value clusters with intact terminations and high clarity.