I-Biotite (i-black mica)
incazelo yomkhiqizo
Ikristalu eyodwa ye-biotite iyikholomu emfushane futhi imise okwepuleti, inesigaba esiphambanayo esiyi-hexagonal kanye ne-scaly aggregate.Brown noma omnyama.Umbala uba mnyama ngokwanda kwensimbi.Ezinye izakhiwo ze-optical kanye nemishini zifana nalezo ze-muscovite, ezinobukhulu obuyi-2.7-3.3.
Bhala umyalezo wakho lapha futhi usithumelele wona