Ferroselite
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| Ferroselite | |
|---|---|
| Category | Selenide mineral |
| Chemical formula | iron diselenide (FeSe2) |
| Identification | |
| Molecular Weight | 214 |
| Refractive index | Opaque |
| Solubility | insoluble in water |
| References | [1][2] |
Ferroselite is an iron diselenide of general formula FeSe2 precipitated under reducing conditions in anoxic environments. It is a source of selenium in the Rocky Mountains where selenium occurrence is associated with Upper Cretaceous shale deposits.
In the frame of safety assessment calculations made for deep disposal of high-level radioactive waste, Ferroselite is also considered in geochemical calculations as one of the mineral phases limiting the solubility of Selenium-79.
