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Sulfur and iron surface states on fractured pyrite surfaces
Sulfur iron surface states pyrite surfaces
2012/4/1
Pyrite has a poor {001} cleavage. Unlike most other minerals with a rocksalt-type structure, pyrite typically fractures conchoidally, demonstrating that parting surfaces are not constrained to the {00...
Reactions of aqueous Au1+ sulfide species with pyrite as a function of pH and temperature
Reactions of aqueous Au1+ sulfide species with pyrite as a function of pH and temperature
2012/3/31
The reactivity of aqueous Au11 sulfides with FeS2 at pH 5 3 and 6 for temperatures of 25 and 908C has been investigated using X-ray photoelectron spectroscopy (XPS), scan-ning electron microscopy with...
A 120 yr record of widespread contamination from mining of the Iberian pyrite belt
widespread contamination mining of the Iberian pyrite belt
2014/4/9
A metal-enriched seawater plume entering the western Mediterranean Sea through the Strait of Gibraltar originates 300 km to the west in the Rio Tinto estuary of southwestern Spain. Mining of Rio Tinto...
Gold-bearing arsenian pyrite and marcasite and arsenopyrite from Carlin Trend gold deposits and laboratory synthesis
Gold-bearing arsenian pyrite marcasite arsenopyrite Carlin Trend gold deposits laboratory synthesis
2012/4/1
Invisible gold in natural and synthetic arsenian pyrite and marcasite correlates with
anomalous As content and Fe deficiency, and high contents of invisible gold in most natural
and all synthetic ar...
Surface structural controls on pyrite oxidation kinetics: An XPS-UPS, STM, and modeling study
controls pyrite oxidation kinetics XPS-UPS STM modeling study
2012/4/6
X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS,respectively) and scan-ning tunneling microscopy (STM) were used to observe the initial oxidation of pyrite surfaces in air. The results s...
Structural relationship between pyrite and marcasite
Structural relationship pyrite marcasite
2012/4/5
Westudied pyrite spherules built of radiating crystals to establish the relationships among microstructure, composition, and macroscopic appearance. Results of high-reso-lution transmission electron m...
XPS and LEED study of a single-crystal surface of pyrite
XPS LEED study single-crystal surface pyrite
2012/4/5
This .work reports X-ray photoelectron spectroscopy (XPS) and low-energy electron dlffractlOn}~EED) results for an as-grown (100) s~rface of pyrite (FeS2) cleaned by low-energy H:lOn bombardment and t...
In Fuente Valoria, Province of Soria, Spain, medium-sized crystals of pyrite with a pronounced distorted cubic habit occur in calcareous rocks that are mined for ornamental use. The variations of the ...