Katerinopoulosite, a new picromerite-group mineral, was discovered in the Esperanza mine, Lavrion District, Attikí Prefecture, Greece. The new mineral occurs in the oxidation zone of a sphalerite-rich orebody in association with chalcanthite, nickelboussingaultite, ammoniojarosite, aurichalcite, and goethite. Katerinopoulosite forms white, pale blue or pale green vermiform polycrystalline aggregates, in fact, anthodite crusts with separate anthodites up to 3-cm long and up to 5-mm thick. The lustre is vitreous, and the streak is white. Katerinopoulosite is brittle, has Mohs hardness of 2½ and an uneven fracture. Neither cleavage nor parting is observed. Dmeas = 1.97(2) g/cm3, Dcalc = 1.986 g/cm3. The new mineral is optically biaxial (+), with α = 1.492(2), β = 1.496(2), γ = 1.502(2) (589 nm). 2V (meas.) = 80(5)°, 2V (calc.) = 79°. The infrared spectrum shows the presence of ammonium cations, sulfate anions, and water molecules. The chemical composition is (EDS-mode electron microprobe for Ni, Cu, and Zn; gas chromatography of ignition products for H, N and S, wt%): SO3 38.33, (NH4)2O 11.9, NiO 1.82, CuO 0.37, ZnO 16.83, H2O 29.4, total 98.65. The empirical formula based on 2 S atoms per formula unit (apfu) is H0.13(NH4)1.91(Zn0.86Ni0.10Cu0.02)(SO4)2.00·6.75H2O. Katerinopoulosite is monoclinic, P21/a, a = 9.230(6), b = 12.476(4), c = 6.249(4) Å, β = 106.79(5)°, V = 688.9(9) Å3, and Z = 2. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 5.400 (37) (011), 4.411 (19) (200), 4.314 (19) (021), 4.229 (24) (12–1), 4.161 (100) (20–1, 210, 111), 3.749 (53) (130), 3.034 (29) (211, 11–2). The new mineral is named in honour of the prominent Greek geologist and mineralogist Prof. Dr. Athanassios Katerinopoulos. The type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia.
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Research Article|
July 01, 2018
Katerinopoulosite, (NH4)2Zn(SO4)2·6H2O, a new mineral from the Esperanza mine, Lavrion, Greece
Nikita V. Chukanov;
1
Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka
, Moscow Region142432, Russia
Corresponding author, e-mail: nikchukanov@yandex.ru
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Igor V. Pekov;
Igor V. Pekov
2
Faculty of Geology, Moscow State University
, Vorobievy Gory, Moscow Region119991, Russia
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Dmitry I. Belakovskiy;
Dmitry I. Belakovskiy
3
Fersman Mineralogical Museum of the Russian Academy of Sciences
, Leninsky Prospekt 8-2, Moscow Region119071, Russia
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Sergey N. Britvin;
Sergey N. Britvin
4
Department of Crystallography, St Petersburg State University
, Universitetskaya Nab. 7/9, 199034St Petersburg, Russia
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Vasileios Stergiou;
Vasileios Stergiou
5
Ergatikes Katoikies STX 29
, 19500Lavrion, Attiki, Greece
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Panagiotis Voudouris;
Panagiotis Voudouris
6
Section of Mineralogy and Petrology, Department of Geology and Geoenvironment, National and Kapodistrian University of Athens
, Panepistimioupolis15784, Athens, Greece
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Andreas Magganas
Andreas Magganas
6
Section of Mineralogy and Petrology, Department of Geology and Geoenvironment, National and Kapodistrian University of Athens
, Panepistimioupolis15784, Athens, Greece
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1
Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka
, Moscow Region142432, Russia
Igor V. Pekov
2
Faculty of Geology, Moscow State University
, Vorobievy Gory, Moscow Region119991, Russia
Dmitry I. Belakovskiy
3
Fersman Mineralogical Museum of the Russian Academy of Sciences
, Leninsky Prospekt 8-2, Moscow Region119071, Russia
Sergey N. Britvin
4
Department of Crystallography, St Petersburg State University
, Universitetskaya Nab. 7/9, 199034St Petersburg, Russia
Vasileios Stergiou
5
Ergatikes Katoikies STX 29
, 19500Lavrion, Attiki, Greece
Panagiotis Voudouris
6
Section of Mineralogy and Petrology, Department of Geology and Geoenvironment, National and Kapodistrian University of Athens
, Panepistimioupolis15784, Athens, Greece
Andreas Magganas
6
Section of Mineralogy and Petrology, Department of Geology and Geoenvironment, National and Kapodistrian University of Athens
, Panepistimioupolis15784, Athens, Greece
Corresponding author, e-mail: nikchukanov@yandex.ru
Publisher: Deutsche Mineralogische Gesellschaft, Sociedad Española de Mineralogia, Societá Italiana di Mineralogia e Petrologia, Société Francaise de Minéralogie
Received:
25 May 2017
Revision Received:
09 Jul 2017
Accepted:
10 Jul 2017
First Online:
04 May 2018
Online ISSN: 1617-4011
Print ISSN: 0935-1221
© 2018 E. Schweizerbart'sche Verlagsbuchhandlung, D-70176 Stuttgart
European Journal of Mineralogy (2018) 30 (4): 821–826.
Article history
Received:
25 May 2017
Revision Received:
09 Jul 2017
Accepted:
10 Jul 2017
First Online:
04 May 2018
Citation
Nikita V. Chukanov, Igor V. Pekov, Dmitry I. Belakovskiy, Sergey N. Britvin, Vasileios Stergiou, Panagiotis Voudouris, Andreas Magganas; Katerinopoulosite, (NH4)2Zn(SO4)2·6H2O, a new mineral from the Esperanza mine, Lavrion, Greece. European Journal of Mineralogy 2018;; 30 (4): 821–826. doi: https://doi.org/10.1127/ejm/2018/0030-2746
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Index Terms/Descriptors
- ammonium ion
- Attica Greece
- chemical composition
- chromatograms
- crystal structure
- electron probe data
- Europe
- formula
- gas chromatograms
- Greece
- infrared spectra
- Laurion Greece
- metals
- new minerals
- optical properties
- oxidation zone
- physical properties
- Southern Europe
- spectra
- sphalerite
- Sterea Ellas
- sulfate ion
- sulfates
- sulfides
- water
- X-ray diffraction data
- zinc
- Esperanza Mine
- picromerite group
- katerinopoulosite
Latitude & Longitude
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