Spinel dunite from Samani, Hokkaido, Japan.
FOV=ca.5 mm #thinsection #petrology #petrography #polarizingmicoscope
Geologist @ Aichi Univ., Japan / former curator / building stone / granitic rock 地質系元学芸員現大学教員が地質学をエンジョイ。 著書など☞ amzn.to/3KH2Ffn ウェブサイト☞ nishimoto.biz