Zaïrite在日本京都和谷石寺地区的石英脉中发现

IF 0.9 4区地球科学 Q4 MINERALOGY

Journal of Mineralogical and Petrological Sciences Pub Date : 2021-04-27 DOI:10.2465/JMPS.201130D

Yuma Morimitsu, Y. Shirose, S. Enju, K. Tsuruta, N. Shimobayashi

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引用次数: 0

摘要

Zaïrite是在日本石得县石寺地区洼冢组的变质泥岩中穿透的石英脉中发现的，为日本首次发现。Zaïrite以亮黄色颗粒状晶体(20 - 30µm)的形式出现在含天然铋包裹体的氟磷灰石浸出形成的空腔中。石原地区的zaïrite化学成分比Al地区的zaïrite更接近理想化学成分。在O = 8, OH−= 6的基础上，电子探针微分析仪(EPMA)分析得出的经验公式为(Bi 0.70 Ca 0.23) Σ 0.93 Fe 3+2.91 (P 2.04 S 0.09 O 8)(OH) 6。X射线衍射(XRD)图得到的单晶胞参数为a = 7.311(3) Å， c = 16.407(7) Å，由于化学成分的差异大于类型局域。

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Zaïrite in quartz veins from Ishidera area, Wazuka, Kyoto Prefecture, Japan

Zaïrite was found from the quartz vein penetrating into the metamorphosed mudstone of the Wazuka Unit in Ishidera area, – Prefecture, which is the ﬁ rst occurrence in Japan. Zaïrite occurs as bright – yellow granular crystals (20 – 30 µm) in a cavity formed by the leaching of ﬂ uorapatite with native bismuth inclusion. The chemical composition of zaïrite from Ishidera was closer to the ideal chemical composition, comparing with the zaïrite from type locality including Al. The empirical formula from electron probe micro-analyzer (EPMA) analysis on the basis of O = 8, OH − = 6 was (Bi 0.70 Ca 0.23 ) Σ 0.93 Fe 3+2.91 (P 2.04 S 0.09 O 8 )(OH) 6 . The unit cell parameters obtained from the X – ray di ﬀ raction (XRD) pattern were a = 7.311(3) Å and c = 16.407(7) Å, larger than the type locality due to di ﬀ erence in chemical composition.

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来源期刊

Journal of Mineralogical and Petrological Sciences 地学-矿物学

CiteScore

1.80

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Mineralogical and Petrological Sciences (JMPS) publishes original articles, reviews and letters in the fields of mineralogy, petrology, economic geology, geochemistry, planetary materials science, and related scientific fields. As an international journal, we aim to provide worldwide diffusion for the results of research in Japan, as well as to serve as a medium with high impact factor for the global scientific communication Given the remarkable rate at which publications have been expanding to include several fields, including planetary and earth sciences, materials science, and instrumental analysis technology, the journal aims to encourage and develop a variety of such new interdisciplinary scientific fields, to encourage the wide scope of such new fields to bloom in the future, and to contribute to the rapidly growing international scientific community. To cope with this emerging scientific environment, in April 2000 the journal''s two parent societies, MSJ* (The Mineralogical Society of Japan) and JAMPEG* (The Japanese Association of Mineralogists, Petrologists and Economic Geologists), combined their respective journals (the Mineralogical Journal and the Journal of Mineralogy, Petrology and Economic Geology). The result of this merger was the Journal of Mineralogical and Petrological Sciences, which has a greatly expanded and enriched scope compared to its predecessors.