PPL, XPL and XPL + lambda plate: Fibrous sillimanite (fibrolite), biotite and quartz in a gneiss from Alpe Arami, Swiss. 20x (FOV = 1mm). #alexstrekeisen #fibrolite #sillimanite #alpearami #Swiss pic.twitter.com/wm2dDGecky
— Alexstrekeisen (@alexstrekeisen) April 1, 2021
via Twitter https://twitter.com/alexstrekeisen
April 01, 2021 at 11:35PM
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