Title

Process Mineralogy of Roasted Pyrite and Arsenopyrite

Abstract

Process mineralogical techniques can provide useful information on the mineralogy and textures shown by pyrite and arsenopyrite particles that have been roasted to enhance extraction of gold from refractory gold ores. Dark-field reflected-light microscopy has been found to especially reveal the extent of development of porosity and permeability in the roasted particles. X-ray diffraction has been used to identify the fine-grained, calcium-bearing phases in the roast. Cathodoluminescence microscopy holds promise as a rapid technique for studying the calcium-bearing phases.

Department(s)

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Extraction; Extractive Metallurgy; Heat Treatment; Pyrites; X-ray Analysis; Arsenopyrite; Cathodoluminescence Microscopy; Refractory Gold Ores; Roasted Pyrite; X-ray Diffraction; Gold Ore Treatment

International Standard Serial Number (ISSN)

1047-4838

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1992 Springer Verlag, All rights reserved.

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