mineral

Raw quartz crystal cluster (likely chalcedony/quartz)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

White to pale translucent, glassy-to-waxy luster with irregular sparkling crystal faces; Mohs hardness 7, no cleavage, conchoidal fracture, and trigonal crystal structure. The orange tint may reflect iron staining or warm lighting.

Identified August 15, 2026More mineral →

Explore Raw quartz crystal cluster (likely chalcedony/quartz) 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 precipitates from silica-rich hydrothermal fluids, cavities, or sedimentary veins; specimens may range from ancient Precambrian to much younger. Exact age and locality cannot be determined from the image.

Uses & applications

Used for glass, electronics, abrasives, and ornamentation; attractive clusters are collected as mineral specimens but are generally inexpensive.

Geological facts

Quartz is one of Earth’s most abundant minerals and has strong piezoelectric properties, allowing it to generate voltage under pressure.

Field identification & locations

Common worldwide, especially in Brazil, Madagascar, Arkansas, Morocco, and alpine veins. Confirm identity by testing hardness against glass (quartz should scratch it), while avoiding damage to a collectible specimen.