mineral

Weathered quartz-rich rock, likely vein quartz

Mostly silicon dioxide (SiO₂); exact rock type cannot be confirmed from the photograph

AI-generated identification · may be incorrect

White, tan, and brown with a massive, uneven texture and dull-to-glassy patches; quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and conchoidal fracture. Brown coloration is likely from iron-oxide staining.

Identified October 10, 2026More mineral →

Explore Weathered quartz-rich rock, likely vein quartz 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 quartz-rich rock, likely vein quartz
Scientific name: Mostly silicon dioxide (SiO₂); exact rock type cannot be confirmed from the photograph
Category: mineral
Identified: October 10, 2026
Method: Standard

AI Estimated Value

About $1–$15 for a common rough specimen of this size; higher value would require notable crystals, locality, or documented provenance.

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

Quartz commonly forms when silica-rich fluids fill fractures and crystallize, often during later stages of igneous or metamorphic activity; the specimen’s age and setting are not determinable from the image.

Uses & applications

Quartz is used in glass, electronics, abrasives, and decorative stone; this rough, weathered piece is mainly suitable for collecting or display.

Geological facts

Quartz is one of Earth’s most abundant minerals and resists weathering, so quartz-rich fragments often persist after surrounding rock erodes.

Field identification & locations

Look for hardness sufficient to scratch glass and no visible cleavage; iron staining and mixed texture make a precise identification uncertain. Quartz veins occur in many rock types worldwide.