%0 Journal Article
%T A note on the chemical composition of nuffieldite solid-solution from sulphide mineralizations in the Western Carpathians, Slovakia
%A Jaroslav Pr£¿ek
%A Emil Makovicky
%A Martin Chovan
%A Alexander Smirnov
%J Mineralogia Polonica
%D 2006
%I 
%X The chemistry of the rare sulphosalt nuffieldite from three localities in Slovakia is examined.Nuffieldite is a part of a complex association of Bi sulphosalts accompanying tetrahedrite mineralization insome sulphide deposits in the Western Carpathians. Cu + Pb = (Bi,Sb) + vac. substitution in nuffielditeand the general formula Cu1+xPb2Bi2(PbxSbyBi1¨Cx¨Cy)S7where 0 < x < 0.34; and 0.32 < y < 0.45 are confirmed.Decreasing Sb content with increasing copper content indicates a predominant substitution of Bi by Sbin nuffieldite.
%K nuffieldite
%K Bi sulphosalts
%K chemical composition
%K Cu + Pb = (Bi
%K Sb) + substitution
%U http://www.ptmin.agh.edu.pl/vol37no1/vol37no1_2.pdf