mineral

Clear Quartz Sphere

Quartz (Silicon Dioxide, SiO2)

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

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

Identified April 21, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed through the cooling of silica-rich magma or from hydrothermal veins. It can be found in igneous, metamorphic, and sedimentary environments globally, occurring throughout all geological ages.

Uses & applications

Used in electronics for its piezoelectric properties, glassmaking, abrasives, and as a popular gemstone for jewelry, meditation, and decorative crystal spheres.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Pure clear quartz is often called 'Rock Crystal', derived from the Greek word 'krystallos', meaning ice.

Field identification & locations

Identify in the field by its hardness (scratches glass), lack of cleavage, and hexagonal crystal habits. Common in pegmatites and riverbeds. For collectors, clarity and the absence of internal fractures increase the value.