A NEW OCCURRENCE OF LAROSITE FROM THE TINNSJA Cu-Ag DEPOSIT, TELEMARK COUNTY, NORWAY. I. PARAGENESIS AND CHEMICAL COMPOSITION

被引：4
作者：
Cook, Nigel J. [1 ,2 ]
Ciobanu, Cristiana L. [1 ,2 ]
Pedersen, Oyvind S. [3 ]
Langerud, Thor H. [3 ]
Karlsen, Ove A. [3 ]
机构：
[1] Univ Adelaide, Sch Earth & Environm Sci, Adelaide, SA 5005, Australia
[2] S Australian Museum, Adelaide, SA 5000, Australia
[3] Thoriumpower Holding AS, N-3040 Filtvedt, Norway
来源：
CANADIAN MINERALOGIST | 2010年 / 48卷 / 06期
关键词：
larosite; electron-microprobe analysis; Cu-Ag vein mineralization; Tinnsja; Norway; ROMANIA; OCNA;
D O I：
10.3749/canmin.48.6.1569
中图分类号：
P57 [矿物学];
学科分类号：
070901 ;
摘要：
A second occurrence of the Cu-Pb-Bi sulfosalt larosite, ideally (Cu, Ag)(21)PbBiS(13), is described from Cu-Ag vein mineralization associated with an amphibolite dyke at Tinnsja, southern Norway. The host assemblage consists of bornite - chalcocite - magnetite - wittichenite (+/- chalcopyrite, digenite, stromeyerite) and closely resembles that from the type locality Larosite crystals present an acicular morphology (<100 mu m in length, <10 mu m in width). An electron-microprobe analysis gives the mean empirical formula Cu(20.47)Ag(3.68)Fe(0.22)Pb(1.01)Bi(1.06)S(15.00) calculated on the basis of 15 S atoms.
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收藏
页码：1569 / 1573
页数：5
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