Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov,
Czech Republic - a new member of the vivianite group

J 2017

Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov, Czech Republic - a new member of the vivianite group

PLÁŠIL, Jakub, Pavel ŠKÁCHA, Jiří SEJKORA, Radek ŠKODA, Milan NOVÁK et. al.

Basic information

Original name

Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov, Czech Republic - a new member of the vivianite group

Authors

PLÁŠIL, Jakub (203 Czech Republic), Pavel ŠKÁCHA (203 Czech Republic), Jiří SEJKORA (203 Czech Republic), Radek ŠKODA (203 Czech Republic, guarantor, belonging to the institution), Milan NOVÁK (203 Czech Republic, belonging to the institution), František VESELOVSKY (203 Czech Republic) and Jan HLOUŠEK (203 Czech Republic)

Edition

Journal of Geosciences, Praha, Česká geologická společnost, 2017, 1802-6222

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10504 Mineralogy

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.415

RIV identification code

RIV/00216224:14310/17:00100332

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.3190/jgeosci.248

UT WoS

000423277800005

Keywords in English

babanekite; new mineral; vivianite group; crystal structure; Jachymov

Abstract

V originále

Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, a new member of the vivianite group was found in material originating from the Geister vein, Rovnost mine, Jachymov, Western Bohemia, Czech Republic. It occurs as a supergene alteration mineral in association with members of the lindackerite supergroup (veselovskyite, hlousekite, pradetite and lindackerite), lavendulan, gypsum and an X-ray amorphous Cu-Al-Si-O-H phase. Crystals of babanekite are pinkish to peach-colored, elongated, prismatic and up to 2 mm in length. They exhibit the forms {010}, {100}, {110}, {101} and less frequently also {001}. Crystals are transparent to translucent with a vitreous luster. The mineral has a light pinkish streak. Estimated Mohs hardness is between 1.5 and 2. The cleavage is perfect on {010}. The calculated density is 3.192 g/cm(3). Electron-microprobe analysis yielded CoO 8.89, NiO 4.06, CuO 15.31, ZnO 10.87, P2O5 0.16, As2O5 39.79, SO3 0.13, H2O 24.78 (calc.), total 103.99 wt.% giving the empirical formula (Cu1.12Zn0.78Co0.69Ni0.32)(Sigma 2.91)[(AsO4)(2.01)(PO4)(0.01)(SO4)(0.01)](Sigma 2.03) center dot 8H(2)O based on 16 O apfu. The ideal end-member formula of babanekite is Cu-3(AsO4)(2) center dot 8H(2)O, which requires CuO 38.95, As2O5 37.52, H2O 23.53, total 100.00 wt.%. Babanekite is monoclinic, C2/m, with a = 10.1729(3), b = 13.5088(4), c = 4.7496(1) angstrom, beta = 105.399(2)degrees, V = 629.28(3) angstrom(3) and Z = 2. The eight strongest X-ray powder diffraction lines are [d(obs) angstrom(I)(hkl)]: 7.936(11)(110), 6.743(100)(020), 3.231(14)(13-1), 2.715(11)(041), 2.3331(10)(15-1), 2.0819(5)(350), 1.6862(16)(080) and 1.6107(4)(55-1). The crystal structure of babanekite, refined to R-1 = 2.18 % for 864 unique observed reflections, confirmed that the atomic arrangement is similar to other members of the vivianite group of minerals. The mineral is named for Ing. Frantisek Babanek (1836-1910), Czech mining and geological expert, who worked in the Jachymov and Pribram mines.

Links

MUNI/A/1316/2015, interní kód MU

Name: Geologické, geodynamické a environmentální procesy východního okraje Českého masívu (Acronym: Geodyn)

Investor: Masaryk University, Category A

Citovat

PLÁŠIL, Jakub, Pavel ŠKÁCHA, Jiří SEJKORA, Radek ŠKODA, Milan NOVÁK, František VESELOVSKY and Jan HLOUŠEK. Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov, Czech Republic - a new member of the vivianite group. Journal of Geosciences. Praha: Česká geologická společnost, 2017, vol. 62, No 4, p. 261-270. ISSN 1802-6222. Available from: https://dx.doi.org/10.3190/jgeosci.248.

@article{1410999,
   author = {Plášil, Jakub and Škácha, Pavel and Sejkora, Jiří and Škoda, Radek and Novák, Milan and Veselovsky, František and Hloušek, Jan},
   article_location = {Praha},
   article_number = {4},
   doi = {http://dx.doi.org/10.3190/jgeosci.248},
   keywords = {babanekite; new mineral; vivianite group; crystal structure; Jachymov},
   language = {eng},
   issn = {1802-6222},
   journal = {Journal of Geosciences},
   title = {Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov, Czech Republic - a new member of the vivianite group},
   volume = {62},
   year = {2017}
}

TY  - JOUR
ID  - 1410999
AU  - Plášil, Jakub - Škácha, Pavel - Sejkora, Jiří - Škoda, Radek - Novák, Milan - Veselovsky, František - Hloušek, Jan
PY  - 2017
TI  - Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov, Czech Republic - a new member of the vivianite group
JF  - Journal of Geosciences
VL  - 62
IS  - 4
SP  - 261-270
EP  - 261-270
PB  - Česká geologická společnost
SN  - 18026222
KW  - babanekite
KW  - new mineral
KW  - vivianite group
KW  - crystal structure
KW  - Jachymov
N2  - Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, a new member of the vivianite group was found in material originating from the Geister vein, Rovnost mine, Jachymov, Western Bohemia, Czech Republic. It occurs as a supergene alteration mineral in association with members of the lindackerite supergroup (veselovskyite, hlousekite, pradetite and lindackerite), lavendulan, gypsum and an X-ray amorphous Cu-Al-Si-O-H phase. Crystals of babanekite are pinkish to peach-colored, elongated, prismatic and up to 2 mm in length. They exhibit the forms {010}, {100}, {110}, {101} and less frequently also {001}. Crystals are transparent to translucent with a vitreous luster. The mineral has a light pinkish streak. Estimated Mohs hardness is between 1.5 and 2. The cleavage is perfect on {010}. The calculated density is 3.192 g/cm(3). Electron-microprobe analysis yielded CoO 8.89, NiO 4.06, CuO 15.31, ZnO 10.87, P2O5 0.16, As2O5 39.79, SO3 0.13, H2O 24.78 (calc.), total 103.99 wt.% giving the empirical formula (Cu1.12Zn0.78Co0.69Ni0.32)(Sigma 2.91)[(AsO4)(2.01)(PO4)(0.01)(SO4)(0.01)](Sigma 2.03) center dot 8H(2)O based on 16 O apfu. The ideal end-member formula of babanekite is Cu-3(AsO4)(2) center dot 8H(2)O, which requires CuO 38.95, As2O5 37.52, H2O 23.53, total 100.00 wt.%. Babanekite is monoclinic, C2/m, with a = 10.1729(3), b = 13.5088(4), c = 4.7496(1) angstrom, beta = 105.399(2)degrees, V = 629.28(3) angstrom(3) and Z = 2. The eight strongest X-ray powder diffraction lines are [d(obs) angstrom(I)(hkl)]: 7.936(11)(110), 6.743(100)(020), 3.231(14)(13-1), 2.715(11)(041), 2.3331(10)(15-1), 2.0819(5)(350), 1.6862(16)(080) and 1.6107(4)(55-1). The crystal structure of babanekite, refined to R-1 = 2.18 % for 864 unique observed reflections, confirmed that the atomic arrangement is similar to other members of the vivianite group of minerals. The mineral is named for Ing. Frantisek Babanek (1836-1910), Czech mining and geological expert, who worked in the Jachymov and Pribram mines.
ER  -

PLÁŠIL, Jakub, Pavel ŠKÁCHA, Jiří SEJKORA, Radek ŠKODA, Milan NOVÁK, František VESELOVSKY and Jan HLOUŠEK. Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, from Jachymov, Czech Republic - a new member of the vivianite group. \textit{Journal of Geosciences}. Praha: Česká geologická společnost, 2017, vol.~62, No~4, p.~261-270. ISSN~1802-6222. Available from: https://dx.doi.org/10.3190/jgeosci.248.

Detailed Information on Publication Record