Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2016 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R1-05
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R1: Characterization and description of minerals
Microstructure and occurrence of lithiophorite from Nagatare pegmatite, Fukuoka Prefecture
*Yohei ShiroseSeiichiro Uehara
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Abstract

Lithiophorite from Nagatare pegmatite consists of fine disk-shape crystals with 1 µm in diameter, 500 nm in thickness. The chemical composition and unit cell parameters are (Li1.00Al2.00)Σ3.00(Mn4+2.00Mn3+0.86Fe3+0.03Al0.11)Σ3.00O6(OH)6, and = 2.921(5), = 28.44(5) and = 210.1(7). Alternative MnO6 octahedral sheet and (Al,Li)(OH)6 octahedral sheet were observed in STEM-HAADF image. HRTEM image indicates ordered structure in (Al,Li)(OH)6 octahedral sheet. 

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© 2016 Japan Association of Mineralogical Sciences
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