Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2013 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R1-P13
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Host: Japan Association of Mineralogical Sciences

R1: Characterization and description of minerals
Fe-rich and Ba-rich piemontite-(Sr) from the Kamisugai deposit
*Karen Miyamoto, Tetsuo Minakawa, Daisuke Hamane
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Keywords: Kamisugai mine, Fe3+-rich piemontite-(Sr), Fe3+-rich piemontite-(Ba)
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Abstract
Fe-rich epidote Minerals group are found from Kamisugai deposit in Sanbagawa matemorphic belt, which is Fe3+-rich piemontite-(Sr) and Fe3+-rich piemontite-(Ba). EPMA analysis for piemontite with highest Fe content gave the empirical formula: Ca1.0(Sr0.76Ba0.13Ca0.10)Σ1.0(Fe3+0.71Mn3+0.26Al0.05)Σ1.01Al 1.0 Mn3+1.0 Si2.99 O12 (OH).A part of piemontite with highest Ba content gave the empirical formula: Ca1.0(Ba0.55Sr0.42Ca0.07)Σ1.04(Fe3+0.62Mn3+0.35)Σ0.96(Al0.99Fe3+0.01)Σ1.0Mn3+1.0Si3.01O12(OH).
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© 2013 Japan Association of Mineralogical Sciences
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