Coyoteite
A variety of Minerals
What is Coyoteite?
Coyoteite is a hydrated sodium iron sulfide mineral. The mineral was named coyoteite after Coyote Peak near Orick, California where it was discovered (along with another rare mineral, orickite). This mineral is unstable under normal atmospheric conditions, making it rare at the surface. The mineral was first described in a petrographic study of a sample of a mafic diatreme at Coyote Peak. The largest piece of coyoteite found on that specimen has the dimensions of 0.2 × 0.4 mm.
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Coyoteite Localities Map
See where Coyoteite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black to pale brownish grey
- Hardness (Mohs)
- 1.5
- Density
- 2.879 g/cm³
- Streak
- Black
Chemical Properties
- Chemical Formula
- NaFe3S5 · 2H2O
- Elements
- Fe, H, Na, O, S
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