OCCURRENCE OF WOODRUFFITE, (ZN, MN-2 H2O,HETAEROLITE, ZNMN2O4, AND HYDROHETAEROLITE, HZNMN2-XO4, OF SUPERGENE ORIGIN IN A SKARN OF MONT CHEMIN (VALAIS, SWITZERLAND)(2)MN3+ 4O7.1)

Authors
MEISSER N PERSEIL EA
Citation
N. Meisser et Ea. Perseil, OCCURRENCE OF WOODRUFFITE, (ZN, MN-2 H2O,HETAEROLITE, ZNMN2O4, AND HYDROHETAEROLITE, HZNMN2-XO4, OF SUPERGENE ORIGIN IN A SKARN OF MONT CHEMIN (VALAIS, SWITZERLAND)(2)MN3+ 4O7.1), Schweizerische Mineralogische und Petrographische Mitteilungen, 73(1), 1993, pp. 11-19
Citations number
NO
Journal title
Schweizerische Mineralogische und Petrographische Mitteilungen → ACNP
ISSN journal
00367699
Volume
73
Issue
1
Year of publication
1993
Pages
11 - 19
Database
ISI
SICI code
0036-7699(1993)73:1<11:OOW(MH>2.0.ZU;2-K
Abstract
Woodruffite, (Zn, Mn+2)Mn3+4O7 - 1-2 H2O, a todorokite-related mineral , hetaerolite ZnMn2O4 and hydrohetaerolite. HZnMn2-xO4, are described in a quartz-calcite Alpine vein cutting a magnetite and sulfide-bearin g skarn in the Chez Larze Mine, Mont Chemin (Valais, Switzerland). Woo druffite occurs as millimeter-to centimeter-botryoidal masses composed of microcrystals. Hetaerolite is the rarest mineral and forms small e quigranular crystals around concretions of woodruffite. Hydrohetaeroli te is optically very similar to woodruffite and occurs as an alteratio n product of hetaerolite. These minerals have a supergene origin.