Large augite crystal (with pigeonite exsolution lamellae. Pigeonite show blue interference colors at XPL) and partially altered plagioclase in a gabbro (know as Absolute Black) from Mutoko, Zimbabwe. PPL and XPL image, 2x (FOV 7 mm) #alexstrekeisen #thinsection #augite #gabbro https://t.co/S1pwiwxU8i
— Alexstrekeisen (@alexstrekeisen) Jul 7, 2021
via Twitter https://twitter.com/alexstrekeisen
July 07, 2021 at 06:04PM
No comments:
Post a Comment