Baghdadite from the Akagane Mine, Iwate Prefecture, Japan.
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Accession number;00A0174862
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| Title;Baghdadite from the Akagane Mine, Iwate Prefecture, Japan. |
| Author;
MATSUBARA S
(National Sci. Museum, Tokyo, Jpn)
MIYAWAKI R
(National Sci. Museum, Tokyo, Jpn)
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Journal Title;Bull Natl Sci Mus Ser C
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Journal Code:S0397B
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ISSN:0385-244X
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VOL.25;NO.3/4;PAGE.65-72(1999)
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| Figure&Table&Reference;FIG.4, TBL.3, REF.7 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Baghdadite from the Akagane mine, Iwate Prefecture, is found as minute accicular crystal groups in garnet-vesuvianite skarn. This is the second occurrence of this mineral in the world. The representative chemical analysis by EPMA gave SiO228.82, TiO20.98, ZrO227.80, CaO41.71, total 99.31wt.%, yielding the empirical formula Ca3.07(Zr0.93Ti0.05).SIGMA.0.98Si1.98O9 on the basis of O=9. The X-ray powder diffraction data by a Gandolfi camera are indexed on monoclinic cell with a=10.37(2), b=10.19(2), c=7.35(1).ANGS., .BETA.=91.05(5).DEG.. (author abst.) |
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