mineral

White/green translucent tumbled mineral fragment

Likely calcite (CaCO₃), possibly fluorite (CaF₂) or glass-like feldspar; visual identification is uncertain

AI-generated identification · may be incorrect

Pale mint-white, translucent, smooth polished surfaces, vitreous to waxy luster, and apparent planar cleavage. If calcite, hardness is 3 and specific gravity about 2.71; fluorite is harder (Mohs 4) with specific gravity about 3.18.

Identified September 6, 2026More mineral →

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At a glance

Common name: White/green translucent tumbled mineral fragment
Scientific name: Likely calcite (CaCO₃), possibly fluorite (CaF₂) or glass-like feldspar; visual identification is uncertain
Category: mineral
Identified: September 6, 2026
Method: Standard

AI Estimated Value

$1-$15 for a common small fragment; $20-$100 or more if confirmed as an attractive, well-formed mineral 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

Likely a cut or tumbled natural mineral fragment formed in hydrothermal veins or sedimentary cavities; exact age and formation setting cannot be determined from the photograph.

Uses & applications

Used as a decorative or collecting specimen; calcite and fluorite also have industrial uses in cement, lime, steelmaking, optics, and chemical processing.

Geological facts

The wedge-like shape and translucent pale color are compatible with calcite cleavage, but the specimen could also be manufactured glass or another mineral; an acid test and hardness test would help distinguish them.

Field identification & locations

Check for effervescence with dilute hydrochloric acid (calcite), cubic cleavage (fluorite), and scratches on glass (hardness above about 5.5). Common sources include Mexico, China, the United States, and Brazil.