sedimentary

Likely weathered sandstone or iron-stained quartzite fragment

Quartz-rich sandstone (predominantly SiO₂; exact identification uncertain from image)

AI-generated identification · may be incorrect

Tan-orange, dull to slightly gritty surface with irregular fracture; likely Mohs hardness 6–7, nonmetallic luster, and no visible cleavage. Iron-oxide staining probably causes the rusty color.

Identified August 8, 2026More sedimentary →

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At a glance

Common name: Likely weathered sandstone or iron-stained quartzite fragment
Scientific name: Quartz-rich sandstone (predominantly SiO₂; exact identification uncertain from image)
Category: sedimentary
Identified: August 8, 2026
Method: Standard

AI Estimated Value

Typically under $1 as an unremarkable fragment; roughly $5–$20 if unusually attractive or sold as a small labeled specimen.

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

Tan-orange, dull to slightly gritty surface with irregular fracture; likely Mohs hardness 6–7, nonmetallic luster, and no visible cleavage. Iron-oxide staining probably causes the rusty color.

Formation & geological history

Sandstone forms when quartz-rich sand is deposited, compacted, and cemented, commonly in rivers, deserts, or shallow seas; quartzite forms when sandstone is metamorphosed. Age cannot be determined from the photograph.

Uses & applications

Ordinary pieces have little commercial value; sandstone is widely used as building stone, paving, aggregate, and carving material. Attractive patterned pieces may be collected or polished.

Geological facts

The specimen is too small and blurred for confident distinction between sandstone, quartzite, and another iron-stained silicate rock.

Field identification & locations

Look for visible sand grains and a gritty break (sandstone) versus a fused, glassy texture and fracturing through grains (quartzite); a streak test, hardness test, and hand lens would help. Quartz-rich rocks occur worldwide.