Mineralogical Characteristics of Poorly Crystallized Precipitates Formed by Oxidation of Fe 2+ in Acid Sulfate Waters
1993; American Chemical Society; Linguagem: Inglês
10.1021/bk-1994-0550.ch014
ISSN1947-5918
AutoresE. Murad, U. Schwertmann, Jerry M. Bigham, L. Carlson,
Tópico(s)Iron oxide chemistry and applications
ResumoIdentification of the minerals produced by the oxidation of sulfides is commonly complicated by the poor crystallinity of the products. A combination of selective chemical extraction procedures and instrumental techniques such as X-ray diffraction and Mössbauer spectroscopy can enable an unequivocal identification of even the most poorly crystalline minerals to be made, and in favorable cases can also provide information on particle dimensions from magnetic blocking temperatures or hyperfine fields at 4.2 K.
Referência(s)