bn:00010586n
Noun Concept
Categories: Iron minerals, Aluminium minerals, Potassium minerals, Monoclinic minerals, Mica group
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biotite  biotite series  black mica  lepidomelano  serie de mica biotita
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Dark brown to black mica found in igneous and metamorphic rock WordNet 3.0
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Dark brown to black mica found in igneous and metamorphic rock WordNet 3.0 & Open English WordNet
Biotite is a common group of phyllosilicate minerals within the mica group, with the approximate chemical formula K3AlSi3O102. Wikipedia
A phyllosilicate mineral Wikipedia Disambiguation
A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron. Wiktionary
Dark brown mica. Wiktionary (translation)
WordNet 3.0 & Open English WordNet
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