THE CRYSTAL STRUCTURE OF EMILITE, Cu10.7Pb10.7Bi21.3S48, THE SECOND 45 A DERIVATIVE OF THE BISMUTHINITE AIKINITE SOLID-SOLUTION SERIES

2002 ◽  
Vol 40 (1) ◽  
pp. 239-245 ◽  
Author(s):  
T. Balic-Zunic ◽  
D. Topa ◽  
E. Makovicky
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Solid Solution Series ◽  
Solution Series

The Crystal Structure of Bi2PbMnO4(PO4)2, a Member of a New Solid Solution Series in the Bi–Pb–Mn–P Oxide System

2002 ◽  
Vol 165 (2) ◽  
pp. 324-333 ◽  
Author(s):  
Olivier Cousin ◽  
Marielle Huve ◽  
Pascal Roussel ◽  
Olivier Perez ◽  
Hugo Steinfink
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Oxide System ◽  
Solid Solution Series ◽  
Solution Series

Phase transitions in solid solution series bismutocolumbite – stibiocolumbite (Bi-Sb)(Nb0.79Ta0.21)O4

2002 ◽  
Vol 217 (10) ◽  
Author(s):  
S. S. Kazantsev ◽  
D. Yu. Pushcharovsky ◽  
B. Maximov ◽  
V. Molchanov ◽  
S. Werner ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Phase Transitions ◽  
Solid Solution Series ◽  
Solution Series

AbstractThe crystal structure of bismutocolumbite, Bi(Nb

The solid solution series Tl(V1−xCrx)5Se8: crystal structure, magnetic and thermoelectric properties

2015 ◽  
Vol 3 (40) ◽  
pp. 10509-10517 ◽  
Author(s):  
Stefan Maier ◽  
Robin Lefèvre ◽  
Xinsong Lin ◽  
Raghavendra Nunna ◽  
David Berthebaud ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Thermoelectric Properties ◽  
Solid Solution Series ◽  
Single Crystalline ◽  
Solution Series

The crystal structure of single crystalline members of the solid solution series Tl(V1−xCrx)5Se8 (x = 0–1 and Δx = 0.2) was determined and the magnetic and thermoelectric properties of bulk TlV5Se8 were investigated.

On the symmetry and crystal structure of aguilarite, Ag4SeS

2013 ◽  
Vol 77 (1) ◽  
pp. 21-31 ◽  
Author(s):  
L. Bindi ◽  
N. E. Pingitore
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Structural Study ◽  
Type Locality ◽  
Solid Solution Series ◽  
Chemical Formula ◽  
Space Group ◽  
Solution Series ◽  
System A ◽  
History Of

AbstractAn examination of a specimen of aguilarite from the type locality provides new data on the chemistry and structure of this mineral. The chemical formula of the crystal used for the structural study is (Ag3.98 Cu0.02)(Se0.98 S0.84 Te0.18), on the basis of 6 atoms. The mineral was found to be monoclinic, crystallizing in space group P 21/n, with a = 4.2478(2), b = 6.9432(3), c = 8.0042(5) Å , β = 100.103(2)º, V = 232.41(2) Å3 and Z = 4. The crystal structure [refined to R1 = 0.0139 for 958 reflections with I > 2 σ (I)] is topologically identical to that of acanthite, Ag2S. It can be described as a body-centred array of tetrahedrally coordinated X atoms (X = S, Se and Te) with Ag2X3 triangles in planes nearly parallel to (010); the sheets are linked by the Ag1 silver site, which has twofold coordination.Aguilarite is definitively proved to be isostructural with acanthite; it does not have a naumannite-like structure, as previously supposed. Our data support the hypothesis that there are two solid solution series in the system: a monoclinic 'acanthite-like' series (from Ag2S - Ag2S0.4Se0.6), and an orthorhombic 'naumannite-like' series (from Ag2S0.3Se0.7-Ag2Se). This is supported by data gathered on synthetic counterparts. Aguilarite remains as a valid as a mineral species, but it should be described as the Se-analogue of acanthite.In this study we also (1) review the history of the aguilarite; (2) compare properties of synthetic and natural aguilarite; and (3) demonstrate how earlier researchers erred in describing aguilarite as orthorhombic.The Te-bearing composition of the studied aguilarite crystal suggests the possibility of a solid solution with cervelleite (Ag4TeS).

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