mineral

Native gold nuggets (likely gold-bearing specimen)

Native gold, Au; possibly associated quartz or sulfide matrix

AI-generated identification · may be incorrect

Irregular, metallic yellow-gray pieces with bright metallic luster and granular/nugget textures. Gold has Mohs hardness 2.5–3, cubic crystal structure, no cleavage, and very high specific gravity (~19.3); the image is insufficient to confirm composition.

Identified August 18, 2026More mineral →

Explore Native gold nuggets (likely gold-bearing specimen) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Native gold forms in hydrothermal quartz veins and placer deposits through weathering and erosion of gold-bearing rocks, ranging from ancient Precambrian deposits to geologically young river gravels. The pieces appear loose and may be natural placer grains or crushed material.

Uses & applications

Used primarily as a precious metal for jewelry, bullion, electronics, and investment; collectible value depends strongly on verified gold content, weight, and shape.

Geological facts

Gold is exceptionally dense, malleable, and resistant to oxidation. It commonly accumulates in stream gravels because lighter minerals are washed away.

Field identification & locations

Test with a specific-gravity measurement, streak (gold-yellow), malleability, and professional XRF or fire assay; pyrite is brittle and usually leaves a dark streak. Common sources include California, Alaska, Australia, Canada, and South Africa.