Pararealgar and Alacranite from the Nishinomaki Mine, Gunma Prefecture, Japan
| Accession number;06A0166030 |
| Title;Pararealgar and Alacranite from the Nishinomaki Mine, Gunma Prefecture, Japan |
| Author;MATSUBARA SATOSHI(National Sci. Museum, Tokyo, Jpn) MIYAWAKI RITSURO(National Sci. Museum, Tokyo, Jpn) |
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.31;NO.;PAGE.1-6(2005)
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| Figure&Table&Reference;FIG.4, TBL.3, REF.10 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Pararealgar and alacranite are found in the arsenic ore from the Nishinomaki mine, Gunma Prefecture, Japan. The unit cell parameters calculated by powder X-ray diffraction data are a=9.925(2), b=9.695(2), c=8.504(2) .ANGS., .BETA.=97.1(1).DEG. for pararealgar, and a=9.941(2), b=9.398(2), c=8.910(2) .ANGS., .BETA.=102.0(1).DEG. for alacranite. Both minerals are yellow with resinous luster, and often occur as mixture on the surface of realgar. They may be formed secondarily under the exposing of realgar by sunlight. (author abst.) |
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