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Alteration of Ilmenite in the Manavalakurichi Deposit, India

Published online by Cambridge University Press:  28 February 2024

D. S. Suresh Babu ,
K. A. Thomas ,
P. N. Mohan Das  and
A. D. Damodaran
D. S. Suresh Babu
Affiliation:
Beach Sand Mineral Research Unit, Regional Research Laboratory (CSIR), Trivandrum 695 019, India
K. A. Thomas
Affiliation:
Beach Sand Mineral Research Unit, Regional Research Laboratory (CSIR), Trivandrum 695 019, India
P. N. Mohan Das
Affiliation:
Beach Sand Mineral Research Unit, Regional Research Laboratory (CSIR), Trivandrum 695 019, India
A. D. Damodaran
Affiliation:
Beach Sand Mineral Research Unit, Regional Research Laboratory (CSIR), Trivandrum 695 019, India
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Abstract

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Magnetic fractionation, chemical, and structural analyses prove that alteration of ilmenite from Manavalakurichi deposit extends only up to the formation of pseudorutile with traces of rutile. The data indicate that ferrous to ferric iron transformation, ferric iron oxide formation, and iron removal contribute to the alteration sequence. The first two highly magnetic fractions are not unaltered ilmenite. A reduction in ilmenite unit cell volume indicates the ferrous-ferric conversion occurred during alteration.

Keywords

AlterationIlmenitePseudorutileUnit cell volume
Type
Research Article
Information
Clays and Clay Minerals , Volume 42 , Issue 5 , October 1994 , pp. 567 - 571
Copyright
Copyright © 1994, Clay Minerals Society

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