mineral

Tumbled Clear Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Colorless or transparent with minor inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Colorless or transparent with minor inclusions
Luster: Vitreous

Identified August 5, 2026More mineral →

Explore Tumbled Clear Quartz in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 7 on Mohs scale; Color: Colorless or transparent with minor inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Forms in hydrothermal veins, pegmatites, and as a primary constituent of many igneous, metamorphic, and sedimentary rocks over a wide geological timeframe.

Uses & applications

Used in jewelry, decorative items, optical components, oscillators in electronics, and metaphysical healing practices.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Pure quartz, traditionally called rock crystal, has been used since antiquity for carvings and fire starters.

Field identification & locations

Identified by its high hardness (scratches glass easily), lack of cleavage, and conchoidal fracture. Commonly found worldwide in virtually all geological environments.