mineral

Quartz-rich pebble, likely milky quartz

Quartz (silicon dioxide, SiO₂), possibly with iron-oxide or feldspar impurities

AI-generated identification · may be incorrect

Hardness 7 Mohs; creamy white to pale tan, translucent in places, with a vitreous-to-waxy luster and no obvious cleavage. The irregular granular texture suggests a weathered quartz fragment rather than a crystal.

Identified September 7, 2026More mineral →

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At a glance

Common name: Quartz-rich pebble, likely milky quartz
Scientific name: Quartz (silicon dioxide, SiO₂), possibly with iron-oxide or feldspar impurities
Category: mineral
Identified: September 7, 2026
Method: Standard

AI Estimated Value

Usually negligible as a loose common pebble; approximately $1–$10 for a small attractive specimen, more if later confirmed as a distinctive collectible variety.

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

Likely formed in an igneous or metamorphic host rock and later released by weathering and transported as a stream or surface pebble; its precise geological age cannot be determined from the image.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and engineered stone; attractive pieces may be used as inexpensive cabinet specimens or lapidary material.

Geological facts

Quartz is one of Earth’s most abundant minerals and is highly resistant to chemical and physical weathering, allowing it to accumulate in sediments.

Field identification & locations

Identify it by its hardness— it should scratch glass—and lack of cleavage; quartz commonly occurs in veins, granite, sandstone, and stream gravels worldwide. The image is not detailed enough to exclude quartzite, feldspar, or chalcedony.