Research output: Contribution to journal › Article
Vendidaite, AL2(SO4)(OH)3CL·6H2O, a new mineral from La Vendida copper mine, Antofagasta region, Chile. / Chukanov, Nikita V.; Krivovichev, Sergey V.; Chernyatieva, Anastasiya P.; Möhn, Gerhard; Pekov, Igor V.; Belakovskiy, Dmitriy I.; Van, Konstantin V.; Lorenz, Joachim A.
In: Canadian Mineralogist, Vol. 51, 2013, p. 559-568.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Vendidaite, AL2(SO4)(OH)3CL·6H2O, a new mineral from La Vendida copper mine, Antofagasta region, Chile
AU - Chukanov, Nikita V.
AU - Krivovichev, Sergey V.
AU - Chernyatieva, Anastasiya P.
AU - Möhn, Gerhard
AU - Pekov, Igor V.
AU - Belakovskiy, Dmitriy I.
AU - Van, Konstantin V.
AU - Lorenz, Joachim A.
PY - 2013
Y1 - 2013
N2 - The new mineral vendidaite was discovered in the abandoned La Vendida mine, near Sierra Gorda, Antofagasta Region, Atacama desert, Chile. Associated minerals are aubertite, magnesioaubertite, belloite, eriochalcite, alunite, kaolinite, and halloysite. Vendidaite forms colorless platy crystals up to 0.01 × 0.3 × 0.3 mm in size; these occur in clusters up to 0.5 mm across. Vendidaite is brittle, with estimated Mohs’ hardness of 2–2½ and perfect cleavage on (010). Dmeas = 1.97(1) g/cm3, Dcalc = 1.974 g/cm3. The new mineral is optically biaxial (+), α = 1.522(2), β = 1.524(2), γ = 1.527(2), 2V (meas.) = 75(15)°, 2V (calc.) = 79°. Infra-red spectrum is given. The chemical composition (electron microprobe, H2O by gas chromatography) is (in wt.%): Al2O3 28.51, Fe2O3 1.39, SO3 22.38, Cl 9.87, H2O 38.8, O = Cl −2.23, total 98.72. The empirical formula is: Al1.96Fe3+0.06(SO4)0.98 Cl0.98(OH)3.12 5.98H2O. The crystal structure was solved using single-crystal X-ray diffraction data (R1 = 0.044). Vendidaite is monoclinic,
AB - The new mineral vendidaite was discovered in the abandoned La Vendida mine, near Sierra Gorda, Antofagasta Region, Atacama desert, Chile. Associated minerals are aubertite, magnesioaubertite, belloite, eriochalcite, alunite, kaolinite, and halloysite. Vendidaite forms colorless platy crystals up to 0.01 × 0.3 × 0.3 mm in size; these occur in clusters up to 0.5 mm across. Vendidaite is brittle, with estimated Mohs’ hardness of 2–2½ and perfect cleavage on (010). Dmeas = 1.97(1) g/cm3, Dcalc = 1.974 g/cm3. The new mineral is optically biaxial (+), α = 1.522(2), β = 1.524(2), γ = 1.527(2), 2V (meas.) = 75(15)°, 2V (calc.) = 79°. Infra-red spectrum is given. The chemical composition (electron microprobe, H2O by gas chromatography) is (in wt.%): Al2O3 28.51, Fe2O3 1.39, SO3 22.38, Cl 9.87, H2O 38.8, O = Cl −2.23, total 98.72. The empirical formula is: Al1.96Fe3+0.06(SO4)0.98 Cl0.98(OH)3.12 5.98H2O. The crystal structure was solved using single-crystal X-ray diffraction data (R1 = 0.044). Vendidaite is monoclinic,
M3 - статья
VL - 51
SP - 559
EP - 568
JO - Canadian Mineralogist
JF - Canadian Mineralogist
SN - 0008-4476
ER -
ID: 5679693