mineral

Small tumbled brown mineral specimen

Likely quartz variety or iron-stained feldspar; exact identification is uncertain from the image

AI-generated identification · may be incorrect

Small rounded, polished/tumbled brown stone with a dull-to-waxy luster and possible translucent edges; likely Mohs hardness about 6–7, with no visible cleavage or crystal faces.

Identified August 25, 2026More mineral →

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Physical properties

Small rounded, polished/tumbled brown stone with a dull-to-waxy luster and possible translucent edges; likely Mohs hardness about 6–7, with no visible cleavage or crystal faces.

Formation & geological history

Could be naturally weathered or mechanically tumbled silica-rich material, commonly formed in igneous or metamorphic rocks; geological age cannot be determined visually.

Uses & applications

Suitable as a pocket stone, craft material, or inexpensive collectible; value is generally low unless it proves to be a recognized gemstone such as jasper, tiger’s-eye, or smoky quartz.

Geological facts

The brown coloration may result from iron-oxide staining, inclusions, or natural banding hidden by the small size and lighting.

Field identification & locations

Field identification requires testing streak, hardness, translucency, and density; a glass-scratch test and strong light inspection could distinguish quartz-rich material from softer feldspar or jasper.