Bílinite
A variety of Minerals
What is Bílinite?
Bílinite (FeFe2(SO4)·22H2O) is an iron sulfate mineral. It is a product of the oxidation of pyrite in water. It is an acidic mineral that has a pH of less than 3 and is harmful to the environment when it comes from acid rock drainage (Keith et al., 2001). Bílinite was first discovered near Bílina, Czech Republic which is why the mineral was named 'bílinite' (Palache, et al., 1969). This mineral possibly occurs on Mars.
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Bílinite Localities Map
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Key Characteristics
Composition of Bílinite
The weight percent oxide is as follows:
Quick Facts
Physical Properties
- Color
- White to yellowish
- Hardness (Mohs)
- 2
- Density
- 1.99 g/cm³
Chemical Properties
- Chemical Formula
- Fe2+Fe3+2(SO4)4 · 22H2O
- Elements
- Fe, H, O, S
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