- , (mineralogy) a number of hematite this is certainly pseudomorphic after magnetite crystals.
- Iron sesquioxide in isometric type, most likely a pseudomorph after magnetite.
- Iron sesquioxid in isometric crystals, most likely pseudomorph after magnetite. It occurs occasionally on a sizable scale, such as the Lake Superior iron region and also the Cerro de Mercado in Mexico.
Sentence for "martite"
- Various analyses of this "martite" ore…
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