metamorphic or sedimentary

Small pale stone, likely quartzite or limestone fragment

Indeterminate; possible quartzite (mostly SiO₂) or calcitic limestone (CaCO₃)

AI-generated identification · may be incorrect

Light gray-white, opaque, and weakly lustrous with a smooth, worn surface; apparent hardness is roughly 3–7 Mohs depending on composition. The image is insufficient to determine grain size, cleavage, or specific gravity.

Identified September 2, 2026More metamorphic or sedimentary →

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At a glance

Common name: Small pale stone, likely quartzite or limestone fragment
Scientific name: Indeterminate; possible quartzite (mostly SiO₂) or calcitic limestone (CaCO₃)
Category: metamorphic or sedimentary
Identified: September 2, 2026
Method: Standard

AI Estimated Value

Typically less than $1 as an isolated fragment; about $5–$20 only if confirmed as part of an attractive labeled specimen.

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

Could be a naturally weathered fragment of quartz-rich metamorphic rock or carbonate sedimentary rock; age and formation environment cannot be established visually.

Uses & applications

Common quartzite is used as aggregate, paving, and ornamental stone; limestone is used for cement, lime, construction aggregate, and architecture. This unremarkable fragment has negligible commercial value.

Geological facts

The rounded, flattened shape suggests abrasion or tumbling, possibly from landscaping material or a polished-floor setting. A definite identification requires simple tests.

Field identification & locations

Scratch with a steel knife and test with dilute hydrochloric acid or vinegar: quartzite resists scratching and does not fizz, while calcitic limestone is softer and effervesces. Common worldwide.