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Magnetic mineralogical characteristics of Hamersley iron ores in Western Australia

journal contribution
posted on 06.12.2017, 00:00 by Wanwu Guo
This paper presents the research outcomes of a magnetic mineralogical study on Hamersley iron ores. Thermal magnetic analysis shows that typical high-grade martite-microplaty hematite or M- (mpl H) and martite-microplaty hematite-goethite or M-(mpl H)-g ores contain a small amount of original magnetite. A small amount of magnetite/maghemite and pyrite/pyrrhotite/siderite may exist in typical martite-goethite (M-G) and martite-ochreous goethite (M-oG) ores. In “the hardcap zone”, M-(H)-g ores contain a small amount of magnetite and maghemite. Compared with XRD, thermal magnetic analysis is not only more sensitive in identifying trace of magnetite contained in high-grade hematite ores, but also more diagnostic in identifying other unstable magnetic minerals like maghemite and pyrite/pyrrhotite/siderite co-existed in the ores.

History

Volume

3

Issue

2

Start Page

150

End Page

155

Number of Pages

6

eISSN

2327-4379

ISSN

2327-4352

Location

USA

Publisher

Scientific Research Publishing

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Not affiliated to a Research Institute; School of Engineering and Technology (2013- );

Era Eligible

Yes

Journal

Journal of applied mathematics and physics.