mineral

Likely beach-worn glass and a pebble

The brown piece appears to be weathered glass (amorphous SiO₂-rich material); the pale piece is likely a small quartz-rich stone, possibly milky quartz.

AI-generated identification · may be incorrect

Brown piece: smooth, translucent-to-opaque, conchoidally fractured, with no crystal structure; pale piece: gray-white, mottled, and fine-grained. Hardness and specific gravity cannot be reliably determined from the image.

Identified October 15, 2026More mineral →

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At a glance

Common name: Likely beach-worn glass and a pebble
Scientific name: The brown piece appears to be weathered glass (amorphous SiO₂-rich material); the pale piece is likely a small quartz-rich stone, possibly milky quartz.
Category: mineral
Identified: October 15, 2026
Method: Standard

AI Estimated Value

Typically under $1 each; decorative sea glass may sell for a few dollars.

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

The brown fragment is likely human-made glass worn smooth by water and sand, not a geological specimen; the pale pebble likely formed by natural rock weathering and abrasion.

Uses & applications

The fragments have no evident industrial or jewelry use; they may be kept as beach finds or craft material.

Geological facts

Sea glass develops rounded edges through prolonged abrasion, but its color and smoothness alone cannot distinguish it conclusively from natural minerals.

Field identification & locations

The brown fragment’s uniform color and glassy, curved shape suggest sea glass; the smaller pale specimen may be quartz or another light-colored pebble. A closer view or simple hardness tests would improve identification.