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Crystallochemical Study of a Population of Particles in Smectites from a Lateritic Weathering Profile
Crystal-chemistry ESR FTIR Layer structural composition Mossbauer Nontronite Smectite Solid-solution
2011/12/31
In the copper deposit of Salobo 3A (Brazil), nontronite-like clay samples were found at the bottom of the weathering blanket. Samples were fractionated first by sedimentation and then by a HGMS method...
Relation of Infrared, Crystallochemical, and Morphological Properties of Al-Substituted Hematites
Aluminum Hematite Infrared spectroscopy Iron oxides Morphology Unit-cell parameters
2012/2/6
Synthetic Al-hematites prepared from ferrihydrites, at low (∼ 100°C) and high (400° and 800°C) temperatures were studied for their morphological, crystallochemical, and infrared (IR) characteris...
Dissolution of Smectites in Hydrochloric Acid: II. Dissolution Rate as a Function of Crystallochemical Composition
Crystallochemical Dissolution Hydrochloric Nontronite Smectite
2012/2/10
A correlation was made of crystallochemical data from 15 smectites with the half time of dissolution (t05) in 6 N hydrochloric acid at 96°C. From this the relation ln t05 = 3.95 − 1.96 FeVI W...