mineral

Druzy quartz cluster on matrix

Quartz (SiO₂), likely a drusy coating on a carbonate or other rock matrix

AI-generated identification · may be incorrect

White to tan, rough cluster with many small sparkling crystal faces; quartz is Mohs 7, vitreous, and trigonal. The image is not sharp enough to confirm the matrix or identify individual crystals confidently.

Identified October 12, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystals commonly grow from silica-rich fluids in cavities or fractures, sometimes over a pre-existing rock surface. The specimen’s age and exact geological setting cannot be determined from the image.

Uses & applications

Druzy quartz is mainly used for mineral collecting and decorative pieces; suitable material may be used in jewelry and ornamentation.

Geological facts

Druzy describes a close coating of tiny crystals rather than a distinct mineral species.

Field identification & locations

Look for hard, glassy, often sparkly crystal surfaces; quartz can scratch glass and resists scratching from a steel knife. The pictured cluster’s matrix and locality are uncertain, so a definitive field identification needs closer inspection.