mineral

Weathered gold-bearing quartz/ironstone (possible gold nugget)

Native gold (Au), if metallic gold is present, in quartz–iron-oxide matrix

AI-generated identification · may be incorrect

Yellow-brown, dull to slightly metallic surface with granular texture; likely quartz and iron oxides. Gold is Mohs 2.5–3 and malleable, whereas quartz is Mohs 7; apparent color alone cannot confirm gold.

Identified August 30, 2026More mineral →

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At a glance

Common name: Weathered gold-bearing quartz/ironstone (possible gold nugget)
Scientific name: Native gold (Au), if metallic gold is present, in quartz–iron-oxide matrix
Category: mineral
Identified: August 30, 2026
Method: Standard

AI Estimated Value

About $1–$20 as an ordinary rock; if assay-confirmed native gold, value is commonly tied to gold weight, potentially $100–$1,000+ depending on mass and specimen quality.

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

May form in hydrothermal quartz veins, with weathering releasing resistant native-gold pieces; host rocks can be Precambrian to younger depending on locality. The image is insufficient to determine age or composition confidently.

Uses & applications

Gold has value in jewelry, electronics, and bullion; quartz-rich specimens are mainly collectible. Ironstone itself is common and generally low-value.

Geological facts

A true gold nugget should feel unusually dense, leave a yellow streak when scratched on unglazed porcelain, and deform rather than crumble under pressure; these tests can damage a specimen.

Field identification & locations

Possible indicators include exceptional heft, persistent yellow color in fresh fractures, and malleability, but brass-colored sulfides and iron-stained rocks can look similar. Confirm with specific-gravity testing, streak, and professional assay; common goldfields include Australia, Alaska, California, and the Witwatersrand.