sedimentary

Small rounded pebble, likely limestone or quartz-rich sedimentary fragment

Indeterminate lithic clast; probable micritic limestone (CaCO₃) or weathered quartz-rich stone

AI-generated identification · may be incorrect

Pale cream, rounded, matte to weakly granular surface; apparent hardness roughly 3–7 Mohs depending on composition. No visible crystals, cleavage, or diagnostic banding; scale suggests about 1–2 cm.

Identified September 3, 2026More sedimentary →

Explore Small rounded pebble, likely limestone or quartz-rich sedimentary fragment 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: Small rounded pebble, likely limestone or quartz-rich sedimentary fragment
Scientific name: Indeterminate lithic clast; probable micritic limestone (CaCO₃) or weathered quartz-rich stone
Category: sedimentary
Identified: September 3, 2026
Method: Standard

AI Estimated Value

Typically $0–$2 as an ordinary pebble; generally negligible collector value without distinctive mineralogy, provenance, or fossil content.

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 weathered and transported pebble formed from an older sedimentary rock; its precise geological age and source cannot be determined from the photograph.

Uses & applications

Usually landscaping, craft, or a casual collection specimen; no significant industrial or gem value unless testing reveals an unusual composition.

Geological facts

The image alone cannot reliably distinguish limestone from quartzite, sandstone, or even a weathered manufactured fragment. A drop of dilute hydrochloric acid would visibly fizz on calcite-rich limestone.

Field identification & locations

Commonly found in streambeds, beaches, gravel deposits, and soils worldwide. Inspect fresh surfaces with a loupe, test streak and hardness, and check acid reaction; the visible texture is insufficient for a confident identification.