Clay Minerals · 1974 · 28 citations · 5 references
Natural SciencesEarth SciencesGeologyGeochemistryInorganic ChemistryMineralogyClay MineralogyClay MineralsMineral ChemistryMineral ClassificationMineral GeochemistryMineral IdentificationChlorite MineralsClay Crystal ChemistryClay Mineral ChemistryClay Mineral Crystal ChemistryClay Mineral GeochemistryClay Mineral StructuresMixed-layer Clay MineralsX-ray Diffraction Analysis
Abstract A bluish-green clay found in veins cutting across brecciated slates of the Llanvirnian stage at Huy, Belgium, is shown by X-ray diffraction and chemical analysis to be a lithium-bearing, aluminium-rich, regular mixed layer montmorillonite-chlorite with associated pyrophyllite, nacrite and quartz and smaller amounts of calcite and ankerite. The cation exchange capacity of the purified air-dry magnesium saturated clay is 49 mEq/100 g and its structural formula is The problem of the nomenclature of regular mixed layer montmorillonite-chlorites is discussed.
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