Title

Ore Microscopy of the Boss-Bixby, Missouri, Cobalt-Copper-Iron Ores

Abstract

An ore microscopic study of the Boss-Bixby, Missouri, copper-iron deposit has shown that the mineralization formed as a simple sequence of oxides followed by cobaltian sulfides, copper-iron sulfides, and then oxides. The hypogene ore minerals are magnetite, hematite, ilmenite, rutile, chalcopyrite, bornite, covellite, cobaltian pyrite, carrollite, sphalerite, clausthalite, galena, electrum, scheelite, wolframite, and a Pb-Bi-Se-Te mineral. Textural evidence indicates that some of the early oxides were original constituents of the host syenites and oxidized during cooling. The remainder of the mineralization formed as breccia fillings and replacements. Subsequent partial oxidation formed martite, covellite, rutile, and anatase.

Department(s)

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Cobalt Deposits - Missouri; Copper Deposits - Missouri; Geology - Missouri; Iron Deposits - Missouri; Mineralization; Mineralogy

International Standard Serial Number (ISSN)

1073-2187

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 Society of Mining Engineers of AIME, All rights reserved.

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