mineral

Iron-stained quartz-rich pebble

Likely quartz with iron-oxide staining; exact identification is uncertain from the image

AI-generated identification · may be incorrect

Small, rounded, opaque tan-orange specimen with darker gray-brown patches and a rough, granular surface. Quartz has hardness 7, a vitreous luster on fresh surfaces, and no cleavage; the specimen’s texture is not clear enough to assess its crystal structure or composition confidently.

Identified September 25, 2026More mineral →

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Physical properties

Formation & geological history

Likely a naturally weathered pebble, with iron oxides producing the rusty coloration; its original rock type and geological age cannot be determined from the image.

Uses & applications

Primarily of collecting interest; quartz-rich material has broad industrial uses, but this small specimen has no evident commercial or jewelry value.

Geological facts

Iron oxides commonly stain quartz and other rocks yellow, orange, or brown. A fresh, clean break or a hardness test would help confirm the identification.

Field identification & locations

Look for the granular texture and rusty staining; quartz should scratch glass, though testing may damage the specimen. Similar pebbles occur widely in gravel deposits and weathered rock.