Item talk:Q162442
Mindat Short Description
In 2012, the IMA revised the nomenclature of the Hollandite Supergroup (Biagioni et al., 2013). Hollandite is now redefined as the (more widespread) Ba-Mn3+ end-member of the coronadite group; concurrently, type hollandite is redefined as ferrihollan...
Geoscience Ontology Status Notes
Named hollandite, though subsequently found to be ferrihollandite: Fermor L L (1906) Manganese in India, Transactions of the Mining and Geological Institute of India 1, 69-131 First report of true hollandite: Miura H (1986) The crystal structure of hollandite. Mineralogical Journal 13, 119-129 Redefined, and chemical formula revised from BaMn2+Mn4+7O16: Biagioni C, Capalbo C, Pasero M (2013) Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90
IMA Formula (from Mindat)
Ba(Mn4+6Mn3+2)O16
RRUFF Formula (from Geoscience Ontology)
Ba(Mn4+6Mn3+2)O16
