$Clear quartz crystal (Quartz (SiO₂), likely a small rough or naturally fractured crystal) — mineral$

mineral

Clear quartz crystal

Quartz (SiO₂), likely a small rough or naturally fractured crystal

AI-generated identification · may be incorrect

Colorless to milky translucent, vitreous luster, hexagonal crystal system; Mohs hardness 7, no cleavage, conchoidal fracture, specific gravity about 2.65. The photo does not show enough detail to confirm its identity; calcite is another possibility.

Identified October 3, 2026More mineral →

Explore Clear quartz crystal in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Formation & geological history

Quartz crystallizes from silica-rich fluids in veins, cavities, and igneous or metamorphic rocks over a wide range of geological ages.

Uses & applications

Commonly collected and used for ornaments, jewelry, and decorative objects; industrial quartz is important in glassmaking and electronics.

Geological facts

Quartz is one of Earth’s most abundant minerals. A hardness test and checking for cleavage can help distinguish it from softer, cleavable minerals such as calcite.

Field identification & locations

Look for glassy luster and hardness sufficient to scratch glass; quartz commonly occurs worldwide in veins, pegmatites, and sedimentary deposits. The specimen’s exact source and identification cannot be determined from the image alone.