Results 131 to 140 of about 633 (178)
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Stability relations of malachite and azurite
Mineralogical Magazine, 1986AbstractStability relations of malachite and azurite are calculated and shown in Eh-pH diagrams, using ΔF (Gibbs free energy) values listed in Garrels and Christ (1965). The malachite/azurite transition is very sensitive to small chemical changes in the environment: equilibrium is reached at PCO2 = 10−3.45 atm., i.e. close to normal values, whereas the
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The infra-red spectra of azurite and malachite
Spectrochimica Acta Part A: Molecular Spectroscopy, 1968Abstract The infra-red spectra of azurite and malachite have been recorded as Nujol mulls in the region 5000-250 cm−1 and as Rigidex disks in the region 500-60 cm−1. The vibrations of the carbonate ion and of the Cu0 skeleton have been interpreted in terms of the known crystal structures, and the skeletal vibrations have been assigned by means of a ...
J.A. Goldsmith, S.D. Ross
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The possible antiferromagnetic symmetry groups of azurite
Physica, 1960Abstract Starting with the magnetic point group symmetry obtained by nuclear magnetic resonance techniques and the x -ray space group, Shubnikov group theory is employed to determine the possible antiferromagnetic symmetry groups of the monoclinic crystal azurite.
E.P. Riedel, R.D. Spence
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Interchain interaction effect on the magnetic properties of azurite material
Journal of Physics: Condensed Matter, 2019Abstract Considering the interchain exchange interaction through dimer and monomer in the azurite, a two-dimensional Ising–Heisenberg model with dimer and monomer interlacing arrangement is established, and the magnetic and thermodynamic properties are calculated by Monte Carlo method.
Hai Man, An Du
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Low-Temperature Heat Capacity of Azurite
The Journal of Chemical Physics, 1959The heat capacity of azurite, Cu3(CO3)2(OH)2, has been measured in the temperature range of 1.7–3.6°K. The characteristic λ-type heat capacity anomaly associated with the antiferromagnetic-paramagnetic transition in the crystal has been observed, the Néel point being 1.84°K.
H. Forstat, G. Taylor, B. R. King
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A Selected List of Worldwide Azurite Localities
Rocks & Minerals, 1991(1991). A Selected List of Worldwide Azurite Localities. Rocks & Minerals: Vol. 66, No. 1, pp. 24-28.
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