Disordered intergrowths in lead-arsenic sulfide minerals and the paragenesis of the sartorite-group minerals

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Abstract

High-resolution transmission electron microscopy has been used to investigate disordered structural intergrowths in lead-arsenic sulfide minerals that occur at Lengenbach, Binntal, Switzerland. Most of the material examined was found to be perfectly ordered; however, some highly disordered specimens were found. The "disordered liveingite', compositionally intermediate between dufrenoysite and liveingite, was found to be a disordered intergrowth of sartorite-like units and dufrenoysite-like units. This disordered intergrowth represents a transitional stage in the replacement of dufrenoysite by the more As-rich mineral liveingite. -from Author

Original languageEnglish
Pages (from-to)289-294
Number of pages6
JournalAmerican Mineralogist
Volume75
Issue number3-4
Publication statusPublished - 1 Jan 1990
Externally publishedYes

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