http://earthwise.bgs.ac.uk/index.php?action=history&feed=atom&title=File%3AP527605.jpg 2026-04-03T21:36:20Z Revision history for this page on the wiki MediaWiki 1.42.3 http://earthwise.bgs.ac.uk/index.php?title=File:P527605.jpg&diff=31963&oldid=prev 2017-08-02T18:04:34Z

<p>User created page with UploadWizard</p> <p><b>New page</b></p><div>=={{int:filedesc}}==<br /> {{Information<br /> |description={{|1=Muscovite mica from Ben Fionnalaidh (Benula), south of Loch Mullardoch, Ross and Cromarty. Muscovite is a mica composed of hydrous potassium aluminium silicate. British Geological Survey Petrology Collection sample number MC 7385. A large number of occurrences of mica were investigated during the Second World War to locate commercial sources. This location falls outside the two main concentration of sites, the western pegmatite belts at Knoydart and Loch Shiel and the Strathpeffer and Garve districts. Owing to the geological nature of the pegmatite deposits from which sheet mica is obtained, mining is usually on a small scale and not highly mechanized. This particular location was not of economic significance. P527605.}}<br /> |date=2017-08-02 19:01:06<br /> |source=British Geological Survey<br /> |author=British Geological Survey<br /> |permission=<br /> |other versions=<br /> }}<br /> <br /> =={{int:license-header}}==<br /> {{subst:Custom license marker added by UW}}<br /> {{BGS}}<br /> <br /> [[Category:Uploaded with UploadWizard]]</div>

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