A note on some Dalradian stilpnomelanes and their oxidation
- 1 March 1976
- journal article
- Published by Mineralogical Society in Mineralogical Magazine
- Vol. 40 (313) , 467-472
- https://doi.org/10.1180/minmag.1976.040.313.05
Abstract
Summary: The widespread ferristilpnomelane in Dalradian metabasites of the south-west Scottish Highlands has usually formed by secondary oxidation of primary ferrostilpnomelane, probably during weathering. Ferrostilpnomelane oxidizes readily in polished thin sections open to the atmosphere over a period of months, and microprobe examination of the resulting ferristilpnomelane suggests a change in the role of potassium in the structure during oxidation.Keywords
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