Biotite e hlaha haholo mafikeng a metamorphic, granite le majoe a mang.'Mala oa biotite o tsoa ho o motšo ho ea ho sootho kapa o motala, o nang le khanya ea khalase.Sebopeho ke poleiti le kholomo.Lilemong tsa morao tjena, biotite e 'nile ea sebelisoa haholo ka pente ea majoe le liaparo tse ling tse khabisitsoeng.