#MineralMonday Porphyroclastic chromite grain (intermediate grey) in a magnetite-(bright white) coated serpentinite (dark) fault. Rotation during shearing caused it to shed material from its rim (which appears to be partially altered to magnetite-ferritchromit)! (FOV~180 μm) pic.twitter.com/6jBckNRZtd
— Matthew Tarling (@RocksbyDefault) August 26, 2018
via Twitter https://twitter.com/RocksbyDefault
August 27, 2018 at 03:04AM
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