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Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia. / Chukanov, N.V.; Britvin, S.N.; Blass, G.; Belakovskiy, D.I.; Van, K.V.

In: European Journal of Mineralogy, Vol. 24, No. 1, 2012, p. 171-179.

Research output: Contribution to journal › Article

Harvard

Chukanov, NV, Britvin, SN, Blass, G, Belakovskiy, DI & Van, KV 2012, 'Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia', European Journal of Mineralogy, vol. 24, no. 1, pp. 171-179. https://doi.org/10.1127/0935-1221/2011/0023-2161

APA

Chukanov, N. V., Britvin, S. N., Blass, G., Belakovskiy, D. I., & Van, K. V. (2012). Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia. European Journal of Mineralogy, 24(1), 171-179. https://doi.org/10.1127/0935-1221/2011/0023-2161

Vancouver

Chukanov NV, Britvin SN, Blass G, Belakovskiy DI, Van KV. Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia. European Journal of Mineralogy. 2012;24(1):171-179. https://doi.org/10.1127/0935-1221/2011/0023-2161

Author

Chukanov, N.V. ; Britvin, S.N. ; Blass, G. ; Belakovskiy, D.I. ; Van, K.V. / Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia. In: European Journal of Mineralogy. 2012 ; Vol. 24, No. 1. pp. 171-179.

BibTeX

@article{e0dcc1c0a03f4120b49906c1496646a8,
title = "Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia",
abstract = "The new mineral windhoekite was discovered in a specimen from the Ariskop Quarry, near Windhoek, Namibia. Associated minerals are fluorapophyllite, aegirine, microcline, arisite-(Ce), arisite-(La). Windhoekite is yellow-brown, translucent; streak is beige. It forms isolated long-prismatic crystals up to 0.15 × 4 mm and their radial aggregates in cavities in phonolite. D calc is 2.630 g/cm 3, D meas is 2.62 (2) g/cm 3. The new mineral is biaxial (-), α = 1.610(3), β = 1.662(3), γ = 1.671(3), 2V (meas.) = 50(10)°, 2V (calc.) = 44°. Dispersion is not observed, pleochroism is strong (Y ≈ Z > X, brown to dark brown), orientation: X ≈ α; Z = c. The IR spectrum is given. The chemical composition is (electron microprobe, mean of 5 analyses, wt%): CaO 9.24, MnO 0.85, Fe 2O 3 23.14, Al 2O 3 0.41, SiO 2 46.32, H 2O (by gas chromatography) 21.0; total 100.96. The empirical formula based on 34 O atoms is: (Ca 1.68Mn 0.12)Fe 3+ 2.96(Si 7.87Al 0.08O 20)(OH) 4 10H 1.98O. The simplified formula is: Ca 2Fe 3+ 3-x[(Si,Al) 8O 20",
author = "N.V. Chukanov and S.N. Britvin and G. Blass and D.I. Belakovskiy and K.V. Van",
year = "2012",
doi = "10.1127/0935-1221/2011/0023-2161",
language = "не определен",
volume = "24",
pages = "171--179",
journal = "European Journal of Mineralogy",
issn = "0935-1221",
publisher = "SCHWEIZERBART Science Publishers",
number = "1",

}

RIS

TY - JOUR

T1 - Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4 10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia

AU - Chukanov, N.V.

AU - Britvin, S.N.

AU - Blass, G.

AU - Belakovskiy, D.I.

AU - Van, K.V.

PY - 2012

Y1 - 2012

N2 - The new mineral windhoekite was discovered in a specimen from the Ariskop Quarry, near Windhoek, Namibia. Associated minerals are fluorapophyllite, aegirine, microcline, arisite-(Ce), arisite-(La). Windhoekite is yellow-brown, translucent; streak is beige. It forms isolated long-prismatic crystals up to 0.15 × 4 mm and their radial aggregates in cavities in phonolite. D calc is 2.630 g/cm 3, D meas is 2.62 (2) g/cm 3. The new mineral is biaxial (-), α = 1.610(3), β = 1.662(3), γ = 1.671(3), 2V (meas.) = 50(10)°, 2V (calc.) = 44°. Dispersion is not observed, pleochroism is strong (Y ≈ Z > X, brown to dark brown), orientation: X ≈ α; Z = c. The IR spectrum is given. The chemical composition is (electron microprobe, mean of 5 analyses, wt%): CaO 9.24, MnO 0.85, Fe 2O 3 23.14, Al 2O 3 0.41, SiO 2 46.32, H 2O (by gas chromatography) 21.0; total 100.96. The empirical formula based on 34 O atoms is: (Ca 1.68Mn 0.12)Fe 3+ 2.96(Si 7.87Al 0.08O 20)(OH) 4 10H 1.98O. The simplified formula is: Ca 2Fe 3+ 3-x[(Si,Al) 8O 20

AB - The new mineral windhoekite was discovered in a specimen from the Ariskop Quarry, near Windhoek, Namibia. Associated minerals are fluorapophyllite, aegirine, microcline, arisite-(Ce), arisite-(La). Windhoekite is yellow-brown, translucent; streak is beige. It forms isolated long-prismatic crystals up to 0.15 × 4 mm and their radial aggregates in cavities in phonolite. D calc is 2.630 g/cm 3, D meas is 2.62 (2) g/cm 3. The new mineral is biaxial (-), α = 1.610(3), β = 1.662(3), γ = 1.671(3), 2V (meas.) = 50(10)°, 2V (calc.) = 44°. Dispersion is not observed, pleochroism is strong (Y ≈ Z > X, brown to dark brown), orientation: X ≈ α; Z = c. The IR spectrum is given. The chemical composition is (electron microprobe, mean of 5 analyses, wt%): CaO 9.24, MnO 0.85, Fe 2O 3 23.14, Al 2O 3 0.41, SiO 2 46.32, H 2O (by gas chromatography) 21.0; total 100.96. The empirical formula based on 34 O atoms is: (Ca 1.68Mn 0.12)Fe 3+ 2.96(Si 7.87Al 0.08O 20)(OH) 4 10H 1.98O. The simplified formula is: Ca 2Fe 3+ 3-x[(Si,Al) 8O 20

U2 - 10.1127/0935-1221/2011/0023-2161

DO - 10.1127/0935-1221/2011/0023-2161

M3 - статья

VL - 24

SP - 171

EP - 179

JO - European Journal of Mineralogy

JF - European Journal of Mineralogy

SN - 0935-1221

IS - 1

ER -

ID: 5455233