-
Calcined mica ntụ ntụ
Mica tumadi na-eti mkpu n'ime monoclinal crystal system, nke bụ pseudohexagonal thin flake, scaly, platy, na mgbe ụfọdụ pseudohexagonal column.Hardness 2 ~ 3, kpọmkwem nnukwu mpo 2.70 ~ 3.20, njupụta nke njupụta 0.3-0.5. nke ihe di n'ime ígwè, nke enwere ike ibuli site na ala di ala rue ala nkịtị, ma nwee ike itinye mkpanaka ọkụ.
