Polyhedron distortions in tourmaline
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Polyhedron distortions in tourmaline
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WebCOD ID Links Formula Space group Cell parameters Cell volume Bibliography; 4123710: CIF: Cs Ge I3: R 3 m :H: 8.3582; 8.3582; 10.6098 90; 90; 120: 641.89: Stoumpos ...
WebThe article Polyhedral Distortions in Tourmaline (A. Ertl, J. Hughes, et al., The Canadian Mineralogist, 2002: 153162) presents a model for calculating bond length distortion in … WebJan 26, 2014 · Single-crystal X-ray diffraction structural data of four Fe-Mg tourmalines with different Fe contents from Xinjiang, Sichuan, and Yunnan Provinces, China, were collected …
WebThe article Polyhedral Distortions in Tourmaline (A. Ertl, J. Hughes, et al., The Canadian Mineralogist, 2002: 153162) presents a model for calculating bond length distortion in vanadium-bearing tourmaline. To check the accuracy of the model, several calculated values (x) were compared with directly observed values (y). WebMar 1, 2024 · Here, we report the polyhedral distortions and their correlations to the structural and two magnetic transitions in FeMn2O4 by employing the high-resolution neutron powder diffraction. The cation distribution is found to be (Mn0.92+Fe0.13+)A(Mn3+Fe0.93+Mn0.12+)BO4.
WebThe structure for the group is one in which SiO 4 tetrahedra are linked into six-membered rings having a hexagonal pattern and are stacked up with intervening distorted triangular BO 3 groups, linked by D site cations; the SiO 4 tetrahedra are linked vertically by G site cations and X site anions, while the columns are linked horizontally by ...
WebCOD ID Links Formula Space group Cell parameters Cell volume Bibliography; 4123710: CIF: Cs Ge I3: R 3 m :H: 8.3582; 8.3582; 10.6098 90; 90; 120: 641.89: Stoumpos ... sharable networkWebTourmalines form the most important boron rock-forming minerals on Earth. They belong to the cyclosilicates with a structure that may be regarded as a three-dimensional framework of octahedra Z O 6 that encompass columns of structural “islands” made of X O 9 , Y O 6 , B O 3 , and T O 4 polyhedra. The overall structure of tourmaline is a result of short-range and … sharable snacks at animal kingdomWebMay 20, 2024 · The result may be caused by polyhedron distortions of YO6 octahedron. It can be concluded that the ability of formaldehyde purification will increase along with the … sharable platesWebSep 1, 2012 · The existence of electric dipole moment suggests that polyhedra distortions occur in tourmaline, ... Therefore, the contraction of Y polyhedron will be associated with … sharable list googleWebJan 7, 2024 · The lower values of and at high pressures suggest that hydrostatic pressures counter to the inherent polyhedral distortions, and facilitate the polyhedra to achieve an ideal structure. At the high pressure regime (beyond 8 GPa) the average pressure derivative for , i.e. in USiO 4 and in ThSiO 4, i.e. are found to be 1.265 × 10 −3 GPa −1 and 1.324 × 10 … shara bouchardWebMay 5, 2024 · Although tourmaline is a common pyroelectric material, the origins of pyroelectricity in tourmaline at varying temperature are still unclear. In the present work, … sharable songsWebFeb 1, 2002 · POLYHEDRON DISTORTIONS IN TOURMALINE. Distortion parameters [ , 2 , DI (Y‐O), DI (O‐ Y‐O), DI (O‐O)] have been calculated for cation polyhedra in tourmalines of … pool car booking system free