Abstract
The distributions of Ag and Sb in galena samples from La Paz and Zacatecas, Mexico, were investigated using electron microprobe analysis, backscattered-electron imaging, and high-resolution transmission electron microscopy. Both samples contain numerous rod-shaped inclusions of diaphorite (Pb2Ag3,Sb3S8), and the La Paz samples also contain franckeite [(Pb,Sn)6Sn2Sb2 FeS14]. Although diaphorite is a common Ag-bearing inclusion in galena, franckeite has not been previously reported. Both samples have Ag concentrations nearly equal to those of Sb, indicating coupled substitution of Ag+ and Sb3+ for 2 Pb2+. -from Authors
Original language | English (US) |
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Pages (from-to) | 85-95 |
Number of pages | 11 |
Journal | American Mineralogist |
Volume | 78 |
Issue number | 1-2 |
State | Published - Jan 1 1993 |
ASJC Scopus subject areas
- Geophysics
- Geochemistry and Petrology