mineral

Quartz Crystal (specifically a small Clear Quartz point)

Silicon Dioxide (SiO2)

Hardness: 7 on the Mohs scale. Color: Colorless/Transparent. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.

Hardness: 7 on the Mohs scale
Color: Colorless/Transparent
Luster: Vitreous (glassy)

Identified March 16, 2026More mineral →

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Physical properties

Hardness: 7 on the Mohs scale. Color: Colorless/Transparent. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.

Formation & geological history

Formed from silica-rich hydrothermal solutions or cooling magma. Can be found in igneous rocks like granite or sedimentary environments. Geological age varies from billions of years to relatively recent depending on the host rock.

Uses & applications

Industry: Scouring agents, glassmaking, and silicon chips. Jewelry: Used as gemstones, beads, and ornamental carvings. Purpose in collecting: Essential 'starter' mineral for all hobbyists.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. It is piezoelectric, meaning it generates an electric charge when mechanical stress is applied, making it vital for watches and radio equipment.

Field identification & locations

Identify in the field by its hardness (it will scratch glass), its lack of cleavage, and its six-sided prismatic shape with pyramidal terminations. Commonly found in mountainous regions or streambeds worldwide.

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