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Mn7(SiO4)3(OH)2
Orthorhombic
Manganhumite, a manganese silicate hydroxide mineral of the manganese-humite group, was reported from Franklin by Dunn (1985a). It is massive, medium brown, and has no discernible fluorescence in ultraviolet. It occurs in 10 cm masses associated with abundant franklinite and zincite, the latter with much hetaerolite exsolution and traces of manganosite exsolution. Minor associated minerals are alleghanyite and calcite; willemite is absent. A microprobe analysis of manganhumite is presented in Table 1.
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| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
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Link
to homepage
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This
page created: January 11, 2001 |
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