
mineral
Gold Nugget
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3.0 (Mohs scale), Color: Golden-yellow to brass-yellow, Luster: Metallic, Crystal Structure: Isometric, Cleavage: None, Specific Gravity: 15.5-19.3
- Hardness
- 2
Identified More mineral →
Explore Gold Nugget in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 2.5-3.0 (Mohs scale), Color: Golden-yellow to brass-yellow, Luster: Metallic, Crystal Structure: Isometric, Cleavage: None, Specific Gravity: 15.5-19.3
Formation & geological history
Formed in hydrothermal quartz veins or through secondary deposition in alluvial (placer) environments. Created from hot, mineral-rich fluids crystallizing in rock fractures.
Uses & applications
Currency, jewelry, electronics (superconductor), dentistry, aerospace, and high-value investment/collecting.
Geological facts
Gold is incredibly ductile; a single ounce can be stretched into a wire 50 miles long. Unlike many other yellow minerals, gold is malleable and will dent or flatten rather than shatter.
Field identification & locations
Identified by its high density (feels heavy for its size), sectility, and golden streak. Often found in stream beds or ancient river gravels using pans or sluices.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary