mineral

Tumbled cream-colored stone, likely quartz or calcite

Indeterminate from photograph; possibilities include microcrystalline quartz (SiO₂) or calcite (CaCO₃)

AI-generated identification · may be incorrect

Small, rounded and polished, opaque to slightly translucent, cream-white with a subdued vitreous-to-waxy luster. Quartz has Mohs hardness 7 and no cleavage; calcite has hardness 3 and prominent rhombohedral cleavage.

Identified September 16, 2026More mineral →

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At a glance

Common name: Tumbled cream-colored stone, likely quartz or calcite
Scientific name: Indeterminate from photograph; possibilities include microcrystalline quartz (SiO₂) or calcite (CaCO₃)
Category: mineral
Identified: September 16, 2026
Method: Standard

AI Estimated Value

Typically $1-$5 for a small common tumbled piece; more if confirmed as an attractive or unusual 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 a naturally occurring mineral fragment shaped by stream abrasion and/or commercial tumbling; its geological age and source cannot be determined visually.

Uses & applications

Commonly sold as a tumbled stone for décor, crafts, meditation, and beginner collections; not identifiable as a gemstone-grade specimen from this image.

Geological facts

A steel nail or knife will not scratch quartz but can scratch calcite; dilute vinegar may fizz on calcite, though testing can damage the polish.

Field identification & locations

Confirm identity with hardness and acid tests: quartz scratches glass and does not fizz, while calcite is easily scratched and effervesces weakly in acid. Creamy tumbled quartz/calcite is common worldwide.