metamorphic

Polished/tumbled orange-brown stone, possibly brecciated jasper or quartzite

Uncertain; likely iron-stained microcrystalline quartz (SiO₂), potentially jasper

AI-generated identification · may be incorrect

Opaque orange, cream, and brown mottling with a waxy-to-dull luster and rounded tumbled form; quartz-rich material has Mohs hardness about 6.5–7, no visible cleavage, and specific gravity near 2.6. The image is insufficient for definitive identification.

Identified September 3, 2026More metamorphic →

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At a glance

Common name: Polished/tumbled orange-brown stone, possibly brecciated jasper or quartzite
Scientific name: Uncertain; likely iron-stained microcrystalline quartz (SiO₂), potentially jasper
Category: metamorphic
Identified: September 3, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a common tumbled specimen; higher only if confirmed as a distinctive jasper variety or collectible material.

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

Jasper forms when silica-rich fluids replace or cement sediments, commonly with iron-oxide staining; related quartzite forms by metamorphism of sandstone. Formation ages vary widely by locality, from Precambrian to younger geological settings.

Uses & applications

Used as a decorative stone, cabochon, bead, tumbled collectible, and occasionally ornamental tile or carving material. This small polished piece has modest commercial value.

Geological facts

The orange coloration commonly comes from hematite or limonite inclusions. A glass-scratching test can help confirm quartz hardness, but should be performed only with permission and care.

Field identification & locations

Look for a glassy or waxy surface, quartz-like hardness, dense weight, and irregular red-orange veining or brecciation; common sources include Brazil, Madagascar, India, Australia, and the western United States. Exact identification requires an uncoated surface, streak, hardness, and preferably magnification.