mineral

Native metallic specimen, possibly galena or a sulfide-rich ore fragment

Tentatively galena (lead sulfide, PbS), possibly mixed with iron/copper sulfides

AI-generated identification · may be incorrect

Small dark gray-to-silver metallic mass with uneven granular surfaces and apparent oxidation. Galena has Mohs hardness 2.5–3, cubic cleavage, metallic luster, and high specific gravity (~7.5); exact properties cannot be confirmed from the image.

Identified August 24, 2026More mineral →

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At a glance

Common name: Native metallic specimen, possibly galena or a sulfide-rich ore fragment
Scientific name: Tentatively galena (lead sulfide, PbS), possibly mixed with iron/copper sulfides
Category: mineral
Identified: August 24, 2026
Method: Standard

AI Estimated Value

About $2–$15 for a small common fragment; $20–$100+ for sharp, lustrous crystals or documented ore specimens.

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 formed in hydrothermal ore veins as sulfide minerals precipitated from hot, mineral-rich fluids, commonly during the Paleozoic–Mesozoic or younger. The brown coating may represent weathering products such as iron oxides.

Uses & applications

Galena is an important historical source of lead and silver; attractive crystals are collector specimens, but lead-bearing pieces should not be handled extensively or used near food.

Geological facts

Its unusually heavy feel, bright metallic gray color, and cubic cleavage are characteristic of galena. Avoid sanding, breaking, or ingesting dust, and wash hands after handling.

Field identification & locations

Test cautiously for high density and cubic cleavage; a streak test on unglazed porcelain is dark gray, but do not perform it indoors because of toxic dust. Common localities include Missouri, Idaho, Mexico, Peru, and Australia.