
mineral
Gold Nugget
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3.0 on Mohs scale; Color: Golden-yellow to brassy; Luster: Metallic; Crystal system: Isometric/Cubic (rarely in crystals, usually amorphous nuggets); Specific Gravity: 19.3 (very heavy).
- Hardness
- 2
- Color
- Golden-yellow to brassy
- Luster
- Metallic
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 on Mohs scale; Color: Golden-yellow to brassy; Luster: Metallic; Crystal system: Isometric/Cubic (rarely in crystals, usually amorphous nuggets); Specific Gravity: 19.3 (very heavy).
Formation & geological history
Formed primarily in hydrothermally active quartz veins and then eroded into placer deposits by water action. Can range from recently eroded to hundreds of millions of years old based on the host rock's geological age.
Uses & applications
Used as a store of value (investment), in jewelry, electronics, dentistry, and aerospace due to its conductivity and resistance to corrosion.
Geological facts
Ninety percent of the world's gold has been mined since 1848. Gold is so malleable that a single ounce can be beaten into a sheet covering 100 square feet.
Field identification & locations
Identify in the field by its extreme weight (high specific gravity), its malleability (it bends rather than shatters), and the fact that its color remains consistent even in shadow. Commonly found in stream beds and ancient river channels.
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
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
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