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The unit-cell of freudenbergite
Published/Copyright:
July 28, 2010
Abstract
Freudenbergite is shown to be monoclinic with unit-cell dimensions a = 12.305 Å, b = 3.822 Å, c = 6.500 Å, β = 107.30°, diffraction symbol 12/m1C…, and unit-cell contents approximating to (Na,K)2 (Ti,Nb)6 (FeIII,Si)2 (O,OH)18. It exhibits slight structural resemblance to pseudobrookite. A 15R-högbomite polytype is associated with freudenbergite at Katzenbuckel.
Published Online: 2010-07-28
Published in Print: 1963-11
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Articles in the same Issue
- Kristallstrukturbestimmung von Imidazol (C3N2H4) mit Faltmolekülen*
- Die Kristallstruktur einiger Alkohol-Halbhydrate
- Applications of Fourier-transform theory to electron-density extraction of Patterson functions
- Single crystals grown from small droplets
- The crystal structure of dachiardite
- Structure, growth and morphology of crystals*
- A back-reflection x-ray camera for thermal-expansion studies and the thermal expansion of NaCl from −180°C to 200°C
- High-pressure scheelite-structure polymorphs of rare-earth vanadates and arsenates
- The redetermination and refinement of the crystal structure of rhodonite, (Mn,Ca)SiO3
- The crystal structure of hodgkinsonite Zn2Mn [(OH)2|SiO4]
- Atomic radii in metals
- Derivation of the two-sided, two-colored, band groups with their associated point groups and a numerical correction
- Some crystallographic properties of CaSeO4 and its hydrates
- Space group of biguanide acid sulphate
- The unit-cell of freudenbergite
