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Braunite-II mineral data, information about Braunite-II, its properties and worldwide locations. Braunite group ... Show Braunite-II Photos (2)
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American Mineralogist: 80: 560-575. Bevan, D.J.M. & R.L.Martin, The role of the coordination defect: A new structural description of four fluorite-related sesquioxide minerals, bixbyite, braunite, braunite II, parwelite, and their structural relationships.
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The crystal structure of braunite II and its relation to bixbyite and braunite; JoHAN P. R. DE Vnrrr,ns; N ational I nstitute for M etallurgy; Applied Mineralogy Research Group; Department of Geologlt, Rand Afrikaans University;
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General Braunite-II Information ... Braunite-II Image ... Braunite-II Crystallography...
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Crystals of braunite. Black Rock Mine, Kalahari Manganese Field, Northern Cape Province, South Africa.
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Braunite - Wikipedia, the free encyclopedia
Braunite is a silicate mineral containing both di- and tri-valent manganese with the chemical formula: Mn 2+ Mn 3+ 6 [O 8 |SiO 4 ]. Common impurities include iron, calcium, boron, barium, ...
en.wikipedia.org/wiki/Braunite |
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American Mineralogist; August 1980; v. 65; no. 7-8; p. 756-765; ... Alert me when this article is cited ... Email this article to a friend...
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partridgeite; the diagram clearly shows partridgeite reflections, not coinciding with braunite; furthermore, positions of braunite-II, ...
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(the braunite II of de Villiers and Herbstein 1967). While mineralogists have traditionally attempted to account for such chemical complexity in minerals by ...
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Moreover, the structure of braunite, Mn2+(Mn3+)6SiO12, reflects the clustering of 12 Mn3+-centred ... The structure of braunite II, [Ca(Mn3+)14SiO24], ...
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