How To Use pyrrhotite In A Sentence
- Many conclude that because pyrite is cubic, pyrrhotite must be hexagonal, as it often appears.
- The most common ores of nickel are pentlandite, pyrrhotite, and garnierite.
- Pseudomorphs of marcasite, chalcopyrite, pyrite, arsenopyrite, pyrargyrite, magnetite, and quartz after pyrrhotite have been reported.
- Some pyrrhotite is relatively unstable in humid environments, decrepitating like pyrite.
- (particularly pentlandite, but also millerite, niccolite, and others), which are found at Sudbury intergrown with the iron and copper sulphides, pyrrhotite and chalcopyrite; and the hydrated nickel-magnesium silicates (garnierite and genthite), which are products of weathering. The Economic Aspect of Geology
- We have also seen several specimens in which pyrite has replaced a hexagonal mineral that was probably pyrrhotite.
- Sulphide mineralization in these deposits tends to be disseminated throughout the body and is dominated by pyrrhotite and pentlandite phases.
- Secondary titanite, chlorite, white mica and pyrrhotite are abundant, and some samples contain metamorphic biotite.
- Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite.
- In essence, the researchers hold that the combination of magnetite, pyrrhotite, and carbonate could not have formed nonbiologically. The Case for Mars