sedimentary

Small rounded orange-brown stone, likely iron-stained quartzite or sandstone

Indeterminate; probable quartz-rich sandstone/quartzite with iron-oxide staining

AI-generated identification · may be incorrect

Tan-orange, fine-grained, matte to faintly satin luster, rounded and water-worn; likely Mohs hardness about 6–7 if quartz-rich, with no visible cleavage. The image is insufficient to confirm mineral composition or density.

Identified August 17, 2026More sedimentary →

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At a glance

Common name: Small rounded orange-brown stone, likely iron-stained quartzite or sandstone
Scientific name: Indeterminate; probable quartz-rich sandstone/quartzite with iron-oxide staining
Category: sedimentary
Identified: August 17, 2026
Method: Standard

AI Estimated Value

Typically $0–$5 as an unproven common pebble; higher only if locality, fossil content, or unusual mineralogy is established.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Likely a naturally weathered and transported pebble formed from quartz-rich sediment cemented by silica or metamorphosed into quartzite; age and locality cannot be determined visually.

Uses & applications

Primarily a curiosity or craft/collection stone; material of this size has no practical construction or jewelry value unless it proves to be a distinctive gemstone or fossil.

Geological facts

The orange coloration is commonly caused by hematite or limonite coatings. Its smooth shape suggests abrasion in a stream, beach, or gravel deposit.

Field identification & locations

Test for a glassy quartz-rich composition by checking whether it scratches glass; sandstone feels granular, while quartzite fractures more compactly and rings when tapped. A streak, acid, hardness, and close-texture examination would improve identification.