mineral

Gold nugget or gold-bearing fragment

Native gold (Au), possibly gold-colored metal or coated material

AI-generated identification · may be incorrect

Yellow metallic color with a bright-to-dull metallic luster and irregular, flattened form; native gold is malleable, non-crystalline to granular, Mohs hardness 2.5–3, and specific gravity about 19.3. The photograph alone cannot confirm that this is gold;…

Identified September 21, 2026More mineral →

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Physical properties

Formation & geological history

Natural gold forms in hydrothermal quartz veins and placer deposits through weathering and erosion, commonly ranging from Precambrian to younger deposits. If genuine, provenance and composition require specific-gravity testing, streak testing, or XRF analysis.

Uses & applications

Native gold is refined for jewelry, electronics, investment, and scientific applications; attractive nuggets are collected. Gold-colored manufactured fragments have little geological or collector value.

Geological facts

Real gold leaves a yellow streak, is distinctly heavy for its size, and bends or dents rather than shattering; pyrite is brittle and leaves a dark streak.

Field identification & locations

Common localities include Australia, Alaska, California, South Africa, and the Yukon. Test discreetly with weight, streak, and professional assay; avoid relying on color alone.