The mineralogy of the historical Mochalin Log REE deposit,
South Urals, Russia. Part V. Zilbermintsite-(La),
(CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with
ET2 type structure and a definition of the radekškodaite group

J 2024

The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with ET2 type structure and a definition of the radekškodaite group

KASATKIN, Anatoly V.; Natalia V. ZUBKOVA; Radek ŠKODA; Igor V. PEKOV; Atali A. AGAKHANOV et. al.

Základní údaje

Originální název

The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with ET2 type structure and a definition of the radekškodaite group

Autoři

KASATKIN, Anatoly V.; Natalia V. ZUBKOVA; Radek ŠKODA; Igor V. PEKOV; Atali A. AGAKHANOV; Vladislav V. GURZHIY; Dmitriy A. KSENOFONTOV; Dmitriy I. BELAKOVSKIY a Aleksey M. KUZNETSOV

Vydání

Mineralogical Magazine, Middlesex, Cambridge University Press, 2024, 0026-461X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.400

Kód RIV

RIV/00216224:14310/24:00137704

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1180/mgm.2024.17

UT WoS

001229960500001

EID Scopus

2-s2.0-85190111777

Klíčová slova anglicky

zilbermintsite-(La); new mineral; crystal structure; ET2 type; radek & scaron;kodaite group; Mochalin Log; South Urals

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 11. 2024 16:44, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The new mineral zilbermintsite-(La), ideally (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4](5)O(OH)(3), was found in a single polymineralic nodule from the Mochalin Log REE deposit, Chelyabinsk Oblast, South Urals, Russia. Zilbermintsite-(La) forms anhedral grains up to 0.65 x 0.20 mm at the contact of ferriperb & oslash;eite-(La), t & ouml;rnebohmite-(La) and ferriallanite-(Ce). Other associated minerals include bastn & auml;site-(La), biraite-(La), ferriallanite-(La), ferriperb & oslash;eite-(Ce), fluorbritholite-(Ce), monazite-(La), perb & oslash;eite-(La), percleveite-(Ce), percleveite-(La), perrierite-(Ce), perrierite-(La), thorianite, thorite and quartz. The new mineral is light brown, translucent in thin fragments with a vitreous lustre. It is brittle, with good {100} cleavage. Mohs hardness is ca. 6. D-calc = 4.684 g cm(-3). Optically, zilbermintsite-(La) is biaxial (+), alpha = 1.805(7), beta = 1.812(7) and gamma = 1.867(8) (589 nm); 2V(meas) = 40(15)degrees and 2V(calc) = 40 degrees. The empirical formula based on O-28(OH,F)(3) apfu is (Ca0.94La2.56Ce2.18Nd0.20Pr0.10Th0.02)(Sigma 6.00)(Al2.96Fe0.903+Fe0.642+Mg0.34Mn0.13Ti0.03)(Sigma 5.00)Si7.00O28[(OH)(2.42)F-0.58]. Zilbermintsite-(La) is monoclinic, P2(1)/m; the unit-cell parameters are: a = 8.9605(5), b = 5.7295(2), c = 25.1033(13) & Aring;, beta = 116.616(7), V = 1152.21(12) & Aring;(3) and Z = 2. The crystal structure of zilbermintsite-(La) is solved from the single-crystal X-ray diffraction data [R = 0.0757 for 2857 unique reflections with I > 2 sigma(I)]. The new mineral is isotypic to radek & scaron;kodaite-(La) and radek & scaron;kodaite-(Ce) and together with them forms the newly defined radek & scaron;kodaite group. All members of this group possess the ET2 type structure where one epidote-type module (E) regularly alternates with two t & ouml;rnebohmite-type modules (T). The new mineral honours Professor Veniamin A. Zilbermints (1887-1939) who was a pioneer of the study of the Mochalin Log deposit. The Levinson suffix-modifier -(La) indicates the predominance of La among rare-earth elements in the mineral.

Citovat

KASATKIN, Anatoly V.; Natalia V. ZUBKOVA; Radek ŠKODA; Igor V. PEKOV; Atali A. AGAKHANOV; Vladislav V. GURZHIY; Dmitriy A. KSENOFONTOV; Dmitriy I. BELAKOVSKIY a Aleksey M. KUZNETSOV. The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with ET2 type structure and a definition of the radekškodaite group. Mineralogical Magazine. Middlesex: Cambridge University Press, 2024, roč. 88, č. 3, s. 302-311. ISSN 0026-461X. Dostupné z: https://doi.org/10.1180/mgm.2024.17.

@article{2453437,
   author = {Kasatkin, Anatoly V. and Zubkova, Natalia V. and Škoda, Radek and Pekov, Igor V. and Agakhanov, Atali A. and Gurzhiy, Vladislav V. and Ksenofontov, Dmitriy A. and Belakovskiy, Dmitriy I. and Kuznetsov, Aleksey M.},
   article_location = {Middlesex},
   article_number = {3},
   doi = {https://doi.org/10.1180/mgm.2024.17},
   keywords = {zilbermintsite-(La); new mineral; crystal structure; ET2 type; radek & scaron;kodaite group; Mochalin Log; South Urals},
   language = {eng},
   issn = {0026-461X},
   journal = {Mineralogical Magazine},
   title = {The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with ET2 type structure and a definition of the radekškodaite group},
   url = {https://www.cambridge.org/core/journals/mineralogical-magazine/article/mineralogy-of-the-historical-mochalin-log-ree-deposit-south-urals-russia-part-v-zilbermintsitela-cala5fe3al3fe2si2o7sio45ooh3-a-new-mineral-with-et2-type-structure-and-a-definition-of},
   volume = {88},
   year = {2024}
}

TY  - JOUR
ID  - 2453437
AU  - Kasatkin, Anatoly V. - Zubkova, Natalia V. - Škoda, Radek - Pekov, Igor V. - Agakhanov, Atali A. - Gurzhiy, Vladislav V. - Ksenofontov, Dmitriy A. - Belakovskiy, Dmitriy I. - Kuznetsov, Aleksey M.
PY  - 2024
TI  - The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with ET2 type structure and a definition of the radekškodaite group
JF  - Mineralogical Magazine
VL  - 88
IS  - 3
SP  - 302-311
EP  - 302-311
PB  - Cambridge University Press
SN  - 0026461X
KW  - zilbermintsite-(La)
KW  - new mineral
KW  - crystal structure
KW  - ET2 type
KW  - radek &
KW  - scaron;kodaite group
KW  - Mochalin Log
KW  - South Urals
UR  - https://www.cambridge.org/core/journals/mineralogical-magazine/article/mineralogy-of-the-historical-mochalin-log-ree-deposit-south-urals-russia-part-v-zilbermintsitela-cala5fe3al3fe2si2o7sio45ooh3-a-new-mineral-with-et2-type-structure-and-a-definition-of
N2  - The new mineral zilbermintsite-(La), ideally (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4](5)O(OH)(3), was found in a single polymineralic nodule from the Mochalin Log REE deposit, Chelyabinsk Oblast, South Urals, Russia. Zilbermintsite-(La) forms anhedral grains up to 0.65 x 0.20 mm at the contact of ferriperb & oslash;eite-(La), t & ouml;rnebohmite-(La) and ferriallanite-(Ce). Other associated minerals include bastn & auml;site-(La), biraite-(La), ferriallanite-(La), ferriperb & oslash;eite-(Ce), fluorbritholite-(Ce), monazite-(La), perb & oslash;eite-(La), percleveite-(Ce), percleveite-(La), perrierite-(Ce), perrierite-(La), thorianite, thorite and quartz. The new mineral is light brown, translucent in thin fragments with a vitreous lustre. It is brittle, with good {100} cleavage. Mohs hardness is ca. 6. D-calc = 4.684 g cm(-3). Optically, zilbermintsite-(La) is biaxial (+), alpha = 1.805(7), beta = 1.812(7) and gamma = 1.867(8) (589 nm); 2V(meas) = 40(15)degrees and 2V(calc) = 40 degrees. The empirical formula based on O-28(OH,F)(3) apfu is (Ca0.94La2.56Ce2.18Nd0.20Pr0.10Th0.02)(Sigma 6.00)(Al2.96Fe0.903+Fe0.642+Mg0.34Mn0.13Ti0.03)(Sigma 5.00)Si7.00O28[(OH)(2.42)F-0.58]. Zilbermintsite-(La) is monoclinic, P2(1)/m; the unit-cell parameters are: a = 8.9605(5), b = 5.7295(2), c = 25.1033(13) & Aring;, beta = 116.616(7), V = 1152.21(12) & Aring;(3) and Z = 2. The crystal structure of zilbermintsite-(La) is solved from the single-crystal X-ray diffraction data [R = 0.0757 for 2857 unique reflections with I > 2 sigma(I)]. The new mineral is isotypic to radek & scaron;kodaite-(La) and radek & scaron;kodaite-(Ce) and together with them forms the newly defined radek & scaron;kodaite group. All members of this group possess the ET2 type structure where one epidote-type module (E) regularly alternates with two t & ouml;rnebohmite-type modules (T). The new mineral honours Professor Veniamin A. Zilbermints (1887-1939) who was a pioneer of the study of the Mochalin Log deposit. The Levinson suffix-modifier -(La) indicates the predominance of La among rare-earth elements in the mineral.
ER  -

KASATKIN, Anatoly V.; Natalia V. ZUBKOVA; Radek ŠKODA; Igor V. PEKOV; Atali A. AGAKHANOV; Vladislav V. GURZHIY; Dmitriy A. KSENOFONTOV; Dmitriy I. BELAKOVSKIY a Aleksey M. KUZNETSOV. The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3, a new mineral with ET2 type structure and a definition of the radekškodaite group. \textit{Mineralogical Magazine}. Middlesex: Cambridge University Press, 2024, roč.~88, č.~3, s.~302-311. ISSN~0026-461X. Dostupné z: https://doi.org/10.1180/mgm.2024.17.

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