• Chukanovite: Mineral information, data and localities.

    www.mindat.org/min-28917.html The Fe analogue of malachite. Product of terrestrial alteration of meteorite iron. Also observed as an anthropogenic corrosion product in the hot-water exchanger of an industrial plant in Beringen, Switzerland (Erdös & Altorfer, 1976).
  • Chukanovite Mineral Data - webmineral.com

    www.webmineral.com/data/Chukanovite.shtml A Bijoux Google Search for Chukanovite Dakota Matrix Minerals Google Search for Chukanovite John Betts Fine Minerals Search for Chukanovite McDougall Minerals Google Search for Chukanovite Rock and Mineral Shows Google Search for Chukanovite Weinrich Minerals, Inc. Google Search for Chukanovite. Ask about Chukanovite here :
  • Chukanovite Fe2(CO3)(OH)2 - Handbook of Mineralogy

    www.handbookofmineralogy.org/pdfs/chukanovite.pdf Chukanovite Fe 2 (CO 3)(OH) 2 Crystal Data: Monoclinic. Point Group: 2/m. Acicular to fibrous, elongated on [001], to 0.5 mm and 2–3 μm thick; often as spherulites (rarely to 1 mm). Typically as botryoidal crusts of spherulitic
  • (PDF) Chukanovite | Natale Perchiazzi - Academia.edu

    www.academia.edu/6351173/Chukanovite The structure of chukanovite was refined on synchrotron data by the Rietveld method up to Rp = 3.43 %, wRp = 4.51 %, RBragg = 2.48 %. Chukanovite is closely related to the minerals of the malachite-rosasite group. It was named in honour of Nikita V. Chukanov (b. 1953), Russian physicist and mineralogist.
  • Synthesis and Characterization of Chukanovite, Fe2CO3(OH)2 ...

    adsabs.harvard.edu/abs/2017AGUFMMR12A..03J Chukanovite, Fe2CO3(OH)2(s), could be one of the precipitates and not much is known regarding its formation and thermodynamic stability. Thus, we have investigated eight mixtures of FeCl2 and NaHCO3 with NaOH for the synthesis of chukanovite in an anoxic glovebox.
  • The crystal structure and Gibbs free energy of formation ...

    geoscience.wisc.edu/astrobiology/wp-content/.../Lee_Xu_2018_Chem_Geol.pdf Rietveld refinement of the chukanovite structure shows it is as expected monoclinic, space group of P2 1/a, with a=12.402(2), b=9.414(1), c=3.216(1) Å, β=97.73(3)°. The standard Gibbs free energy of formation of chukanovite is estimated at −1167.2 ± 1.2kJmol−1 from the equilibrium between siderite and chukanovite.
  • Experiments and Thermodynamic Modeling of Chukanovite (Fe2 ...

    www.osti.gov/servlets/purl/1431523 Kim, Sungtae, Dean, Justin, Knox, Jandi, Kirkes, Leslie Dawn, and Jang, Jay Je-Hun. Experiments and Thermodynamic Modeling of Chukanovite (Fe2(OH)2CO3) to High Ionic Strengths..
  • Fe(II) hydroxycarbonate Fe2(OH)2CO3 (chukanovite) as iron ...

    www.sciencedirect.com/science/article/pii/S0277538708007201 The conditions favouring the formation of chukanovite Fe 2 (OH) 2 CO 3 at the detriment of Fe(II) hydroxide Fe(OH) 2, often considered as the first solid forming from the Fe(II) dissolved species generated by the dissolution of steel, were determined. Chukanovite was the unique compound to form for R > 1 and R′ > 0.5.
  • Chubarovite: Mineral information, data and localities.

    www.mindat.org/min-46141.html Chubarovite mineral data, information about Chubarovite, its properties and worldwide locations. SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser! Log In Register.
  • Solubility Model for Siderite and Chukanovite in Solutions ...

    www.osti.gov/pages/biblio/1411232 Abstract. Here, a solubility model is presented for ferrous iron hydroxide (Fe(OH) 2 (s)), hibbingite (Fe 2 Cl(OH) 3 (s)), siderite (FeCO 3 (s)), and chukanovite (Fe 2 CO 3 (OH) 2 (s)). The Pitzer activity coefficient equation was utilized in developing the model to account for the excess free energies of aqueous species in the background solutions of high ionic strength.