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Fibrousa ttapulgite-palygorskitwei,t h fibersg enerallym easurings everaml illimetersin length,i s found associatewd ith calcitei n hydrothermallyd epositedv eins.T he veinsr epresenftr acturef illing...
Sorption isotherms have been widely used to assess the heavy metal retention characteristics of soil particles. Desorption behavior of the retained metals, however, usually differ from that of sorptio...
Quantity, affinity and rate of heavy metals retention by soil constituents can greatly influence the mobility and bioavailability of these metals in soil environments. Equilibrium and kinetic studies...
The phase-transition behavior of both calcite and the isostructural compound NaNO have longbeen thought to be anomalous. In particular, the ? critical exponent for the orientational order-disor-der t...
Diffusion of Ca and Mg in calcite     Diffusion  Ca  Mg  calcite       2012/4/1
The self-diffusion of Ca and the tracer diffusion of Mg in calcite have been measured experimen-Mg and Ca. Natural single crystals of calcite were coated with atally using isotopic tracers of gas at ...
Analysis of divalent Co, Zn, Pb, and Ba XAFS spectra of synthetic and natural calcite samples containing trace concentrations of these heavy metals confirms their substitution in the unique Ca site ...
In situ X-ray diffraction has been carried out on two siderite samples of different Fe contents simultaneously at high pressure and high temperature in a DIA-type, large-volume apparatus. Unit-cell vo...
Calciteoccurswidelyasamineralcomponentintheexoskeletonsandtissuesofmarine andfreshwaterinvertebrates.Matrixmacromoleculesinvolvedinregulatingthebiological growthofcalciteintheseorganismsareknowntosh...
Otavite(CdCO )recoveredfromexperimentsat P 170kbarand T 1000Ccon-tainedmaterialwiththearagonitestructure,indicatingthataphasetransitionoccurred. Thelatticeparametersofthearagonite-typeCdCOare a 4.989...
The {l014} surfaces ofoptical quality calcite (Iceland spar) wereexamined in air using scanning force microscopy (SFM) immediately after cleavage and during the hours and days that followed. In the ab...
Calcite crystals exposed to clay volatiles react with some components of these volatiles, giving rise to a variety of surface morphologies. F, Cl, and S in different proportions were detected by elect...
Iron salts react readily with calcite in oxidizing calcareous environments to produce solid phase Fe-oxides. These reactions represent important processes in aqueous, geologic, and pedogenic environme...
Ferrous or ferric perchlorate, 0.01 M, was reacted with calcite in stirred aqueous suspensions which were bubbled vigorously with an oxidizing purge gas. Two and three equivalents of CaCO3 were dissol...
Fibrousa ttapulgite-palygorskitwei,t h fibersg enerallym easurings everaml illimetersin length,i s found associatewd ith calcitei n hydrothermallyd epositedv eins.T he veinsr epresenftr acturef illing...
Dolomite or calcite, quartz and kaolinite in various proportions were reacted at 250–300°C temperatures and pressures up to 90 bars in a hydrous environment. Reactions which approached completion prod...

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