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Ardaite—a new lead-antimony chlorosulphosalt

Published online by Cambridge University Press:  05 July 2018

V. V. Breskovska
Affiliation:
Dept. of Mineralogy and Crystallography, ‘Kliment Ohridski’, University of Sofia, Bulgaria
N. N. Mozgova
Affiliation:
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM), Academy of Sciences of the USSR, Staromonetny per. 35, Moscow 109017, USSR
N. S. Bortnikov
Affiliation:
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM), Academy of Sciences of the USSR, Staromonetny per. 35, Moscow 109017, USSR
A. I. Gorshkov
Affiliation:
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM), Academy of Sciences of the USSR, Staromonetny per. 35, Moscow 109017, USSR
A. I. Tsepin
Affiliation:
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM), Academy of Sciences of the USSR, Staromonetny per. 35, Moscow 109017, USSR

Abstract

The first occurrence of new mineral ardaite (a chlorine sulphosalt) has been discovered in the Madjarovo polymetallic ore deposit (Bulgaria). The average composition is Pb 56.50, Ag 0.04, Sb 22.48, S 15.56, Cl 3.78, total 98.36 wt.%. The formula is Pb20–18 Sb12–24S34–36.5Cl6–8. The mineral occurs as fine acicular aggregates associated with galena, nadorite, a Cl-bearing robinsonite and Cl-beating semseyite, pyrostilpnite, silver- bearing tetrahedrite and anglesite.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1982

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