sedimentary

Weathered sandstone or iron-stained sedimentary stone

Quartz-rich sandstone, commonly arkose or lithic sandstone; composition cannot be confirmed visually

AI-generated identification · may be incorrect

Typically Mohs hardness 6–7 for quartz grains, with tan, orange, brown, and gray colors, earthy to slightly gritty luster, and visible bedding or layered texture. Porosity is moderate to high; iron-oxide staining produces the rusty brown patches.

Identified August 10, 2026More sedimentary →

Explore Weathered sandstone or iron-stained sedimentary stone in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Weathered sandstone or iron-stained sedimentary stone
Scientific name: Quartz-rich sandstone, commonly arkose or lithic sandstone; composition cannot be confirmed visually
Category: sedimentary
Identified: August 10, 2026
Method: Standard

AI Estimated Value

About $5–$50 for ordinary fragments; approximately $20–$150 per square meter for commercial architectural stone, depending on finish and locality.

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

Formed from compacted and cemented sand deposited in ancient rivers, deserts, or shallow marine settings, likely millions to hundreds of millions of years old. Surface oxidation and weathering have concentrated goethite/hematite along pores, fractures, and bedding planes.

Uses & applications

Commonly used as building stone, wall cladding, paving, landscaping stone, and architectural veneer; little jewelry value.

Geological facts

The contrasting rusty zones are usually iron oxides rather than a separate mineral layer. Horizontal seams and irregular color bands indicate sedimentary bedding and weathering.

Field identification & locations

Identify by gritty quartz grains, layered structure, earthy colors, and scratching glass with difficulty; it should not fizz strongly in dilute acid. Common worldwide, especially in sedimentary basins; this image may show manufactured masonry veneer.