mineral

Likely rough quartz crystal fragment

Quartz, SiO₂

AI-generated identification · may be incorrect

Small, translucent grayish-white fragment with a glassy-to-waxy luster and an apparent pointed crystal end; quartz has Mohs hardness 7, trigonal crystal symmetry, no cleavage, and specific gravity about 2.65. The identification is visual and uncertain at this size.

Identified October 10, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich fluids in veins and cavities, or forms in igneous and metamorphic rocks; its age depends on the host deposit and cannot be determined from the image.

Uses & applications

Quartz is used in glassmaking, electronics, and abrasives; clear, well-formed crystals are collected and sometimes cut for jewelry.

Geological facts

Quartz is one of Earth’s most abundant minerals and occurs in many colors and crystal habits.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch glass, and absence of cleavage; common settings include quartz veins and pegmatites. Image alone cannot confirm the specimen.