bn:00043157n
Noun Concept
Categories: Mineral stubs, Minerals in space group 141, Tetragonal minerals, Tetragonal crystal system, Spinel group
EN
hausmannite
EN
A mineral consisting of manganese tetroxide; a source of manganese WordNet 3.0
Definitions
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EN
Hausmannite is a complex oxide, or a mixed oxide, of manganese containing both di- and tri-valent manganese. Wikipedia
Oxide mineral Wikidata
A dark mineral composed of manganese tetroxide, sometimes used as an ore of manganese. Wiktionary
WordNet 3.0 & Open English WordNet
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Wikidata
Wiktionary