Melonite and volynskite from the Yokozuru Mine, Sannotake, North Kyushu, Japan

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Authors:Shimada, N.; Miyahisa, M.; Hirowatari, F.
Author Affiliations:Primary:
Kyushu Univ. 33, Fac. Sci., Dep. Geol., Fukuoka 812, Japan
Volume Title:Mineralogical Journal
Source:Mineralogical Journal, 10(6), p.269-278. Publisher: Nippon Kobutsu Gakkai; Japan Publications Trading Co., Ltd., Tokyo, Japan. ISSN: 0544-2540
Publication Date:1981
Note:In English. 18 refs.; illus. incl. 6 tables, sketch map
Summary:A rare assemblage of tellurides has been found in a vein of the Yokozuru mine. The tellurides are melonite, volynskite, hessite and petzite whose compositions correspond with Ni0.98Te2.00, Ag0.99Bi1.01Te2.00, Ag1.99Te1.01 and Ag2.93Au1.03Te2.04, respectively. Some grains of hessite contain Se up to 0.68 wt.% replacing Te. Optical properties are described for melonite and volynskite. Values of reflectance and microhardness were obtained for melonite (VHN 67), volynskite (40-80) and siegenite (467-551). Paragenetic relations suggest that the mineralization of the vein started with deposition of scheelite and quartz, followed by Cu-Bi-Fe sulphides, and ended with the rare mineral assemblage of the Ni-Bi-Au-Ag-Te system. [T.Y.]
Subjects:Alloys; Bornite; Chalcopyrite; Electrum; Hessite; Major elements; Mineral assemblages; Mineralogy; Minerals; Reflectance; Scheelite; Siegenite; Sulfides; Sulfobismuthites; Sulfosalts; Tellurides; Tungstates; Wittichenite; Asia; Far East; Japan; Kyushu; Melonite; Mount Sannotake; Northern Kyushu; Petzite; Volynskite; Yokozuru Mine
Coordinates:N334200 N334200 E1305100 E1305100
Abstract Numbers:84M/1902
Record ID:1982052354
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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