英:[həʊsmə'nɪt]
美:[hoʊsmə'nɪt]
英:[həʊsmə'nɪt]
美:[hoʊsmə'nɪt]
noun
an opaque mineral Mn3O4 consisting of manganese tetroxide found commonly in brownish black tetragonal crystals
J. F. L. Hausmann †1859 German mineralogist + English -ite
1 It occurs native in hausmannite, and may be obtained artificially by igniting the sesquioxide or peroxide in the open air.