mineral

Clear Quartz Point

Silicon Dioxide (SiO2)

Hardness: 7 Mohs; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: Indistinct; Specific Gravity: 2.65

Hardness: 7 Mohs
Color: Colorless/Transparent
Luster: Vitreous

Identified July 21, 2026More mineral →

Explore Clear Quartz Point 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 Mohs; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal); Cleavage: Indistinct; Specific Gravity: 2.65

Formation & geological history

Formed primarily in igneous rocks such as granite pegmatites or in hydrothermal veins where silica-rich fluids cool and crystallize over millions of years.

Uses & applications

Used in electronics for its piezoelectric properties, glassmaking, clocks, healing crystals, and jewelry.

Geological facts

Quartz is one of the most abundant minerals in Earth's crust. 'Rock Crystal' refers to the purest, water-clear variety shown here.

Field identification & locations

Identified by its hexagonal prism shape, lack of cleavage, and ability to scratch glass. Commonly found in mountainous regions worldwide, especially Brazil and Arkansas.