mineral

Tumbled orange-yellow quartz pebble

Quartz (SiO₂), likely iron-stained milky quartz

AI-generated identification · may be incorrect

Hardness 7 Mohs; translucent cream, honey-orange, and white with a vitreous to waxy polish. Quartz has a trigonal crystal structure and no cleavage; the pebble’s rounded shape indicates natural wear or tumbling.

Identified October 13, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich fluids or magma and is among Earth’s most abundant minerals, occurring in rocks of many ages. Orange coloring commonly results from iron-oxide staining or inclusions.

Uses & applications

Used in jewelry, ornaments, and collections; quartz is also important in glassmaking and electronics, though this small pebble is chiefly decorative.

Geological facts

Quartz resists scratching by a steel knife and can scratch glass. Iron staining can color otherwise pale quartz without changing its basic mineral identity.

Field identification & locations

Look for glassy translucence, hardness, and lack of cleavage; quartz pebbles are common in river gravels and quartz veins worldwide. The exact variety cannot be confirmed from the image alone.