Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2015 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R1-09
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R1: Characterization and description of minerals
Reinvestigation of crystal chemistry of sakuraiite
*Koichi MommaRitsuro MiyawakiSatoshi MatsubaraMasako ShigeokaAkira KatoMasaaki ShimizuToshiro Nagase
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Abstract

We performed single-crystal X-ray diffraction study of the type specimen of sakuraiite. In the original description (Kato, 1965), sakuraiite was reported as tetragonal (pseudo-cubic with c = 2a) with an ideal formula of (Cu,Zn,Fe)3(In,Sn)S4. On the other hand, based on X-ray presession images and chemical analyses, Kissin & Owens (1986) concluded that sakuraiite was cubic phase with an ideal formula of (Cu,Zn, Fe,In,Sn)S. In the present study, we obtained a tetragonal P-42m structural model. However, because fine lamellae textures with varying compositions are developed in the type specimen, correspondence of the structure and composition is currently under investigation.

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© 2015 Japan Association of Mineralogical Sciences
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