Micaceous, fun-shaped, pyrophillte crystals (colorless at PPL and with very high Interference colors at XPL) in metapelite from. Indian Gulch, Mariposa Country, California (Usa). PPL and XPL Image, 2x (Fov 7 mm) #thisectionThursday #pyrophyllite https://t.co/kUA1jI60xG
— Alexstrekeisen (@alexstrekeisen) Mar 10, 2022
via Twitter https://twitter.com/alexstrekeisen
March 11, 2022 at 12:57AM
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