Pyrite
From cornish semiconductor corporation
More actions
- Lustre:Metallic
- Transparency:Opaque
- Colour:Pale brass-yellow
- Streak:Greenish-black
- Hardness:6 - 6½ on Mohs scale
- Tenacity:Brittle
- Cleavage:Poor/Indistinct Indistinct on {001}.
- Fracture:Irregular/Uneven, Conchoidal
Data from the pyrite page on mindat
One of the most common semiconducting minerals, pyrite exhibits high conductivity and easily provides a voltage drop - often in both polarities equally, rectification is harder to find than some minerals.