Published April 24, 1996 | Version v1
Journal article Metadata-only

Crystal structure of a new natural (Na, Mn, Ti)-phyllosilicate

Creators

  • 1. Institute of Mineralogy, Geochemistry, and Crystal Chemistry or Rare Elements, Russian Academy of Sciences, ul. Veresaeva 15, Moscow, 121327 (Russian Federation)
  • 2. Moscow State University, Moscow, 119899 (Russian Federation)

Description

The crystal structure of a new natural (Na,Mn,Ti)-phyllosilicate, (Na0.80K0.45) xNa5Mn2+(Ti0.75Nb0.25)[Si10O24(OH)](O,OH)(OH) 2·4H2O, is determined (Syntex P1 automated diffractometer, 1881 reflections, a heavy-atom method, anisotropic approximation, and R=6.6%). The unit-cell parameters are: a=13.0336(6), b=18.717(9), c=12.264(6) A; β=99.62(4) deg.; sp. gr. I2/m, and Z=4, dexp=2.42 and dcalc=2.43 g/cm3. The structure of the mineral contains silicon-oxygen layers parallel to (100), in which five, six, and eight-membered rings of Si-tetrahedra can be recognized. The layers are bound along [001] by the bands consisting of Na, Mn, Ti-octahedral to form a framework. The way of linking of the tetrahedral and octahedral building blocks into a new mineral structure allows one to assign it to the band-layered silicates

Additional details

Identifiers

URL
https://www.pleiades.online/contents/cryst/cryst2_96v41cont.htm;

Publishing Information

Journal Title
Crystallography Reports
Journal Volume
41
Journal Issue
2
Journal Page Range
p. 239-244
ISSN
1063-7745
CODEN
CYSTE3

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35073654
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Translation
Descriptors DEI
CRYSTAL STRUCTURE; LATTICE PARAMETERS; LAYERS; MANGANESE SILICATES; MINERALS; OXYGEN; REFLECTION; SILICON; SODIUM SILICATES; SPACE GROUPS; TITANIUM SILICATES; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; MANGANESE COMPOUNDS; NONMETALS; OXYGEN COMPOUNDS; SCATTERING; SEMIMETALS; SILICATES; SILICON COMPOUNDS; SODIUM COMPOUNDS; SYMMETRY GROUPS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
Translated from Kristallografiya, ISSN 0023-4761, 41, 257-262 (March-April 1996); (c) 1996 MAIK/Interperiodika