metamorphic

Likely quartz-rich rock (quartzite or vein quartz)

Quartzite, composed predominantly of quartz (SiO₂); exact identification is uncertain from the image

AI-generated identification · may be incorrect

Cream to orange-brown with a massive, rough texture and apparent quartz-rich appearance; quartz has Mohs hardness 7, vitreous luster, and hexagonal crystal structure, though individual crystals are not visible here.

Identified October 13, 2026More metamorphic →

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At a glance

Common name: Likely quartz-rich rock (quartzite or vein quartz)
Scientific name: Quartzite, composed predominantly of quartz (SiO₂); exact identification is uncertain from the image
Category: metamorphic
Identified: October 13, 2026
Method: Standard

AI Estimated Value

About $0–$10 for an ordinary loose specimen; higher value would require distinctive quality, provenance, or workmanship.

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

If quartzite, it formed when quartz sandstone recrystallized under heat and pressure; vein quartz instead precipitated from silica-rich fluids. No age or origin can be determined from the photograph.

Uses & applications

Quartzite is used as crushed aggregate, building and decorative stone, and occasionally in landscaping or crafts.

Geological facts

The orange coloration commonly results from iron-oxide staining; a glass scratch test can help confirm quartz-rich material.

Field identification & locations

Look for hardness, interlocking quartz grains, and lack of easy cleavage. Quartz-rich rocks occur worldwide; the image alone cannot establish a specific locality.