Abstract
The limit of Ag substitution in natural zincian tetrahedrites is approx 4 Ag per half unit cell, (Cu,Ag)10(Zn,Fe)2Sb4S13, and into iron tetrahedrites approx 6.5 Ag. The cell size increases with increasing Ag up to 4 Ag but then decreases. In synthetic material the highest substitution achieved was 4.7 Ag in Zn2-tetrahedrite, 7.02 Ag in Cd2-tetrahedrite and 6.80 Ag in Fe2-tetrahedrite. For these synthetic phases the largest cell size was a 10.927 A for the 7.02 Ag in Cd2- tetrahedrite. An explanation for the limit of 7 Ag substitution is given on the basis of a combined electron band/molecular orbital approach.- R.A.H.
Original language | English |
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Pages (from-to) | 441-451 |
Number of pages | 10 |
Journal | Mineralogical Magazine |
Volume | 47 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1983 |