Optical Mineralogy pleochroic halo extinction biotite
39 بار بازدید -
7 سال پیش
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Biotite with a radiation damage
Biotite with a radiation damage halo developed around an accessory mineral (likely zircon or monazite), showing pleochroism in plane polarized light, and birds-eye extinction (mottled appearance) in cross-polarized light.
7 سال پیش
در تاریخ 1396/05/26 منتشر شده
است.
39
بـار بازدید شده