#thinsectionthursday Sillimanite needles (retrogressed to biotite) in feldspar porphyroblasts preserving an S1 foliation. https://t.co/iQRmheVeXj
— NormalFault (@NormalFault) Nov 25, 2021
via Twitter https://twitter.com/NormalFault
November 25, 2021 at 09:20PM
No comments:
Post a Comment