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Octahedral cation distribution in palygorskite
Palygorskite Fe-rich Mg-rich structure near infrared spectroscopy trioctahedral
2011/11/14
The OH speciation of 18 palygorskite samples from various localities were evaluated by near infrared spectroscopy (NIR) and compared to the corresponding octahedral composition derived from independen...
The temperature dependence of the cation distribution in synthetic hercynite (FeAl2O4) from the in-situ neutron structure refinements
temperature dependence cation distribution synthetic hercynite (FeAl2O4) in-situ neutron structure refinements
2012/4/1
The temperature dependence of the cation distribution in synthetic hercynite (FeAl2O4) has been determined using in-situ time-of-flight neutron powder diffraction. The sample was synthesized from the ...
Computer Simulation of Cation Distribution in Dioctahedral 2:1 Layer Silicates Using IR-Data: Application to Mossbauer Spectroscopy of a Glauconite Sample
Cation distribution Computer simulation Glauconite Mossbauer spectra
2011/12/31
A new approach is described to computer simulate cation distribution in octahedral sheets of dioctahedral 2:1 layer silicates with vacant trans-octahedra. This approach makes use of the information on...
Cation Distribution, Mossbauer Spectra, and Magnetic Properties of Ferripyrophyllite
Cations Ferripyrophyllite Iron Magnetic properties Mossbauer spectra Pyrophyllite
2012/2/6
A sample of ferripyrophyllite, a mineral with ideal composition Fe2Si4O10(OH)2, was analyzed by Mössbauer spectroscopy, magnetization and magnetic susceptibility measurements. The iron is entirel...
Exchangeable Cation Distribution in Nickel- and Magnesium- Vermiculites
Exchangeable Cation Distribution Magnesium- Vermiculites
2012/2/15
Abnormal scatterings of X-rays take place between Bragg spots. Their study in hydrated Mg- and Ni-vermiculites shows that they appear in reciprocal space in the form of modulated lines, elongated alon...