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General Welinite-III Information ... Search for Welinite-III Images ... Welinite-III Crystallography...
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General Franciscanite-VIII Information ... Irregular segregations within a sheared sonolite-bearing assemblage in chert. ... 09.AF.07.5 Franciscanite-III Mn6V2Si2(O,OH)14 P 3 3...
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Welinite-III - Wikipedia
La welinite-III è un minerale. Webmin Silicati
it.wikipedia.org/wiki/Welinite-III |
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Welinite. (Mn2+; Mg)3(W6+;Mn3+)1¡x(SiO4)(O;OH)3 (x = 1/3) c○2001 Mineral Data Publishing, version 1.2. Crystal Data: Hexagonal. Point Group: 3: As sections ...
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by electron microprobe, H2 O by analogy to welinite; corresponds to o Mn3: 04 (Fe3+ Sb0:38 Mg 0:08 As0:06 Al 0:02) =1:00 Si 1: 00 [O; (OH)] = 7 : 0:46 Occurrence: Association: Distribution: Name: A ne-grained aggregate with antimonates.
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In welinite the O(3) anion is coordinated to two such octahedrally coordinated. M(1) cations plus two M(2) cations. The charge balance ...
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of a Moore, P. B (1968) -945. The crystalstructure welinite. plex arsenosilicate m M ine of Ark. Mineral. A ral., 45, 93'1 Geo|..4.459-466. Yamamoto,K. (1977)The crystalstructure hydroxyl-chondroof and T. Araki (1978) Hematolite: complex a dense-packed dite.Acta Crystallogr., 833, 148l-1485. sheet structure.
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Aspects of the densely coordinated sheet structures in this mineral exist in the structures of hematolite [(Mn2+,Mg,Al)15(OH)23(AsO3)(AsO4)2], welinite ...
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franciscanite, 8.152, 4.809, 2, P3, Mn, Si, V, 3, Pertlik (1986). welinite, 8.155, 4.785, 2, P63, Mn, W, Si, Mg, 3, Moore (1969) ...
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BSE image of finely zoned welinite. The short end of the picture corresponds to 100 µm. Fig. 3. Compositional variations in welinite– örebroite. Axis units ...
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