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takeuchiite

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Journal Article
Published: 01 December 1980
American Mineralogist (1980) 65 (11-12): 1130–1133.
...Jan-Olov Bovin; M. O'Keeffe Abstract Takéuchiite, Mg 1.59 Mn 0.42 2 + Mn 0.78 3 + Fe 0.19 3 + Ti 0.01 4 + BO 5 , occurs as acicular crystals in granular dolomite and calcite from the Långban mine, Värmland, Sweden. It is orthorhombic, space group Pnnm or Pnn2 with a = 27.50(1), b = 12.614(2), c...
Image
Crystal structure of <span class="search-highlight">takéuchiite</span> Mg 2 Mn(BO 3 )O 2 , with  I G,total   = 11...
Published: 01 January 2016
Fig. 2. Crystal structure of takéuchiite Mg 2 Mn(BO 3 )O 2 , with I G,total = 1179 bits per unit cell, which has a simple chemistry, but a complex modular architecture. Complex octahedral “oxide” modules (upper right) and their location in the structure are shown. Legend: BO 3 triangles
Journal Article
Published: 01 January 2016
The Canadian Mineralogist (2016) 54 (1): 125–143.
...Fig. 2. Crystal structure of takéuchiite Mg 2 Mn(BO 3 )O 2 , with I G,total = 1179 bits per unit cell, which has a simple chemistry, but a complex modular architecture. Complex octahedral “oxide” modules (upper right) and their location in the structure are shown. Legend: BO 3 triangles...
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