Extending the mineralogy of U6+ (II): Barronite, a new uranyl
silicate related to weeksite from Menzenschwand, Germany

J 2025

Extending the mineralogy of U6+ (II): Barronite, a new uranyl silicate related to weeksite from Menzenschwand, Germany

PLASIL, Jakub; Gwladys STECIUK; Radek ŠKODA; Jiri SEJKORA; Zdenek DOLNICEK et al.

Základní údaje

Originální název

Extending the mineralogy of U6+ (II): Barronite, a new uranyl silicate related to weeksite from Menzenschwand, Germany

Autoři

PLASIL, Jakub; Gwladys STECIUK; Radek ŠKODA; Jiri SEJKORA; Zdenek DOLNICEK; Nicolas MEISSER; Stefan ANSERMET a Carsten SLOTTA

Vydání

MINERALOGICAL MAGAZINE, CAMBRIDGE, CAMBRIDGE UNIV PRESS, 2025, 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 v roce 2024

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/25:00143382

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

barronite; complexity; crystal structure; new mineral; 3D electron diffraction; uranyl silicate; weeksite topology

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 16. 1. 2026 15:09, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The new mineral barronite (IMA 2024-053), (□1.5Ba0.5)2(UO2)2Si5O12(OH)·2H2O, was found in the material from the Menzenschwand uranium deposit, Black Forest Mts., Germany, where it occurs as globular/acicular aggregates, consisting of long-prismatic crystals, up to 0.3 mm in length, in baryte and quartz-based gangue. Barronite is not associated with any other supergene minerals. Crystals are pale yellow with a colourless to pale yellow streak. Nevertheless, some of the crystals have a brown-orange tint, caused by Fe–Si-gels. The tenacity is brittle, the Mohs hardness is 1–2. The mineral has distinct cleavage on {100}; the fracture is uneven. Barronite is biaxial (+), with α = 1.599(2), β = 1.607(2), γ = 1.617(3); and 2V (meas.) = 86°. Optical orientation is X = b, Y ˄ a ≈ 3° in the obtuse angle β. Dispersion is distinct r>v. Pleochroism is distinct in hues of pale yellow, X 3σ(I)] reflections) refined from the 3D ED data confirmed that barronite has the same structural architecture as weeksite; however, it contains less H2O in the channels of the uranyl-silicate framework structure.

Návaznosti

EF16_026/0008459, projekt VaV

Název: Dlouhodobý výzkum geochemických bariér pro ukládání jaderného odpadu

Citovat

PLASIL, Jakub; Gwladys STECIUK; Radek ŠKODA; Jiri SEJKORA; Zdenek DOLNICEK; Nicolas MEISSER; Stefan ANSERMET a Carsten SLOTTA. Extending the mineralogy of U6+ (II): Barronite, a new uranyl silicate related to weeksite from Menzenschwand, Germany. MINERALOGICAL MAGAZINE. CAMBRIDGE: CAMBRIDGE UNIV PRESS, 2025, roč. 89, č. 5, s. 638-649. ISSN 0026-461X. Dostupné z: https://doi.org/10.1180/mgm.2025.10081.

@article{2547649,
   author = {Plasil, Jakub and Steciuk, Gwladys and Škoda, Radek and Sejkora, Jiri and Dolnicek, Zdenek and Meisser, Nicolas and Ansermet, Stefan and Slotta, Carsten},
   article_location = {CAMBRIDGE},
   article_number = {5},
   doi = {https://doi.org/10.1180/mgm.2025.10081},
   keywords = {barronite; complexity; crystal structure; new mineral; 3D electron diffraction; uranyl silicate; weeksite topology},
   language = {eng},
   issn = {0026-461X},
   journal = {MINERALOGICAL MAGAZINE},
   title = {Extending the mineralogy of U6+ (II): Barronite, a new uranyl silicate related to weeksite from Menzenschwand, Germany},
   url = {https://resolve.cambridge.org/core/journals/mineralogical-magazine/article/extending-the-mineralogy-of-u6-ii-barronite-a-new-uranyl-silicate-related-to-weeksite-from-menzenschwand-germany/D106344EBF030690EA74FDDEFF894202},
   volume = {89},
   year = {2025}
}

TY  - JOUR
ID  - 2547649
AU  - Plasil, Jakub - Steciuk, Gwladys - Škoda, Radek - Sejkora, Jiri - Dolnicek, Zdenek - Meisser, Nicolas - Ansermet, Stefan - Slotta, Carsten
PY  - 2025
TI  - Extending the mineralogy of U6+ (II): Barronite, a new uranyl silicate related to weeksite from Menzenschwand, Germany
JF  - MINERALOGICAL MAGAZINE
VL  - 89
IS  - 5
SP  - 638-649
EP  - 638-649
PB  - CAMBRIDGE UNIV PRESS
SN  - 0026461X
KW  - barronite
KW  - complexity
KW  - crystal structure
KW  - new mineral
KW  - 3D electron diffraction
KW  - uranyl silicate
KW  - weeksite topology
UR  - https://resolve.cambridge.org/core/journals/mineralogical-magazine/article/extending-the-mineralogy-of-u6-ii-barronite-a-new-uranyl-silicate-related-to-weeksite-from-menzenschwand-germany/D106344EBF030690EA74FDDEFF894202
N2  - The new mineral barronite (IMA 2024-053), (□1.5Ba0.5)2(UO2)2Si5O12(OH)·2H2O, was found in the material from the Menzenschwand uranium deposit, Black Forest Mts., Germany, where it occurs as globular/acicular aggregates, consisting of long-prismatic crystals, up to 0.3 mm in length, in baryte and quartz-based gangue. Barronite is not associated with any other supergene minerals. Crystals are pale yellow with a colourless to pale yellow streak. Nevertheless, some of the crystals have a brown-orange tint, caused by Fe–Si-gels. The tenacity is brittle, the Mohs hardness is 1–2. The mineral has distinct cleavage on {100}; the fracture is uneven. Barronite is biaxial (+), with α = 1.599(2), β = 1.607(2), γ = 1.617(3); and 2V (meas.) = 86°. Optical orientation is X = b, Y ˄ a ≈ 3° in the obtuse angle β. Dispersion is distinct r>v. Pleochroism is distinct in hues of pale yellow, X 3σ(I)] reflections) refined from the 3D ED data confirmed that barronite has the same structural architecture as weeksite; however, it contains less H2O in the channels of the uranyl-silicate framework structure.
ER  -

PLASIL, Jakub; Gwladys STECIUK; Radek ŠKODA; Jiri SEJKORA; Zdenek DOLNICEK; Nicolas MEISSER; Stefan ANSERMET a Carsten SLOTTA. Extending the mineralogy of U6+ (II): Barronite, a new uranyl silicate related to weeksite from Menzenschwand, Germany. \textit{MINERALOGICAL MAGAZINE}. CAMBRIDGE: CAMBRIDGE UNIV PRESS, 2025, roč.~89, č.~5, s.~638-649. ISSN~0026-461X. Dostupné z: https://doi.org/10.1180/mgm.2025.10081.

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