metamorphic

Likely tumbled purple quartzite or jasper

Quartz-rich rock; exact identification is uncertain from the image

AI-generated identification · may be incorrect

Smooth, rounded, opaque mauve-brown pebble with a dull to slightly waxy luster. If quartz-rich, hardness is about 7 Mohs; visible crystal structure and cleavage are absent.

Identified September 27, 2026More metamorphic →

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Physical properties

Smooth, rounded, opaque mauve-brown pebble with a dull to slightly waxy luster. If quartz-rich, hardness is about 7 Mohs; visible crystal structure and cleavage are absent.

Formation & geological history

Likely a naturally formed, silica-rich rock shaped by tumbling or polishing. Its geological age and source cannot be determined from the photo.

Uses & applications

Tumbled stones are used for collecting, crafts, and decoration; this small specimen has little industrial or jewelry value.

Geological facts

The uniform color and finish may result from polishing, but the image does not establish the rock type or whether it has been dyed or coated.

Field identification & locations

Check hardness and streak, and inspect for grains, banding, or translucence; a close-up in natural light would improve identification. Similar pebbles occur in gravel deposits worldwide.