Adolfpateraite, K(UO2)(SO4)(OH)(H2O), a new uranyl sulphate mineral from Jáchymov, Czech Republic.

PLÁŠIL, Jakub, Jan HLOUŠEK, František VESELOVSKÝ, Karla FEJFAROVÁ, Michal DUŠEK, Radek ŠKODA, Milan NOVÁK, Jiří ČEJKA, Jiří SEJKORA and Petr ONDRUŠ. Adolfpateraite, K(UO2)(SO4)(OH)(H2O), a new uranyl sulphate mineral from Jáchymov, Czech Republic. American Mineralogist. 2012, vol. 97, 2-3, p. 447-454. ISSN 0003-004X. Available from: https://dx.doi.org/10.2138/am.2012.3976.

Basic information

• Original name: Adolfpateraite, K(UO2)(SO4)(OH)(H2O), a new uranyl sulphate mineral from Jáchymov, Czech Republic.
• Authors: PLÁŠIL, Jakub (203 Czech Republic, guarantor, belonging to the institution), Jan HLOUŠEK (203 Czech Republic), František VESELOVSKÝ (203 Czech Republic), Karla FEJFAROVÁ (203 Czech Republic), Michal DUŠEK (203 Czech Republic), Radek ŠKODA (203 Czech Republic, belonging to the institution), Milan NOVÁK (203 Czech Republic, belonging to the institution), Jiří ČEJKA (203 Czech Republic), Jiří SEJKORA (203 Czech Republic) and Petr ONDRUŠ (203 Czech Republic).
• Edition: American Mineralogist, 2012, 0003-004X.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10302 Condensed matter physics
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 2.204
• RIV identification code: RIV/00216224:14310/12:00064364
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.2138/am.2012.3976
• UT WoS: 000300209500022
• Keywords in English: Adolfpateraite uranyl sulfate crystal structure chemical composition Jáchymov
• Tags: AKR, rivok

Abstract

Adolfpateraite, monoclinic K(UO2)(SO4)(OH)(H2O), is a new supergene mineral from the Svornost mine, Jáchymov ore district, Czech Republic. It forms sulfur yellow to greenish yellow crystalline aggregates, up to 2 mm in diameter. Crystals are transparent to translucent with a vitreous luster, without observable cleavage. The streak is pale yellow. The Mohs hardness is ~2. The mineral shows a green fluorescence in long-wave ultraviolet radiation. Adolfpateraite is pleochroic, with alpha = colorless and gamma = yellow (beta could not been examined). It is biaxial, with alfa = 1.597(2), gama = 1.659(2) (beta could not been measured), birefringence 0.062. The empirical chemical formula (mean of 4 electron microprobe point analyses) was calculated based on 8 O apfu and is K0.94(UO2)1.00(SO4)1.02(OH)0.90(H2O)1.00 (water content calculated). The simplified formula is K(UO2)(SO4)(OH)(H2O), requiring K2O 10.70, UO3 64.97, SO3 18.19, H2O 6.14, total 100.00 wt%. Adolfpateraite is monoclinic, space group P21/c, a = 8.0462(1), b = 7.9256(1), c = 11.3206(2) A, beta = 107.726(2), V = 687.65(2) A^3, Z = 4, and Dcalc = 4.24 g/cm3. The five strongest reflections in the X-ray powder diffraction pattern are [dobs in Angstroms (I) (hkl)]: 7.658 (76) (100), 5.386 (100) (002), 5.218 (85) (102), 3.718 (46) (021), 3.700 (37) (202). The crystal structure has been refined from single-crystal X-ray diffraction data to R1 = 0.0166 with GOF = 1.30, based on 1915 observed reflections [Iobs > 3sigma(I)]. The crystal structure consists of chains of uranyl polyhedra extended along [010], with OH located on the shared vertex between the bipyramids. The sulfate tetrahedra decorate the outer side of the chain with bridging bidentate linkages between the uranyl pentagonal bipyramids.

Links

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)