mineral

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Colorless to white (with potential clay coating); Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Colorless to white (with potential clay coating)
Luster: Vitreous

Identified March 19, 2026More mineral →

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Physical properties

Formation & geological history

Formed from hydrothermal solutions or cooling of silica-rich magma; commonly found in veins or cavities within various rock types across many geological ages.

Uses & applications

Used in glass manufacturing, electronics (piezoelectric properties), jewelry (semi-precious gemstone), and as a popular specimen for mineral collectors.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. When crystals form with a single point on a base, they are called 'points'; when they grow together in a group, they are called 'clusters'.

Field identification & locations

Identify by its hexagonal prismatic shape ending in a pyramid, inability to be scratched by a steel nail, and lack of cleavage. Found globally, specifically in Arkansas (USA), Brazil, and Madagascar.