Structural and thermal properties of Na2Mn(SO4)2·4H2O and Na2Ni(SO4)2·10H2O

Autor: Hamdi Ben Yahia, Alaa Alkhateeb, Rachid Essehli

The title compounds were prepared via a wet chemistry route and their crystal structures were determined from single crystal X-ray diffraction data. Na2Mn(SO4)2·4H2O crystallizes with a monoclinic symmetry, space group P21/c, with a = 5.5415(2), b =

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beb85963af49b717e1a39d17e4e729bb

Ultrasonic Shaking of Glauconite Pellets with Diverse Reagents for a Comparison of Their K–Ar with Already Published Rb–Sr Results

Autor: Edward Keppens, I. Tonguç Uysal, Norbert Clauer, Amélie Aubert

Publikováno v: Geosciences
Geosciences, MDPI, 2021, 11 (11), pp.439. ⟨10.3390/geosciences11110439⟩
Volume 11
Issue 11
Geosciences, Vol 11, Iss 439, p 439 (2021)

A combined ultrasonic treatment, with de-ionized H2 O, dilute HAc or dilute HCl, of three Mid-Miocene glauconite samples was applied to K–Ar date the different separates in order to compare the results with those obtained by the Rb–Sr method usin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2bb2ab50a1ddf18bf909419844ca661
https://hal.archives-ouvertes.fr/hal-03454182/file/geosciences-11-00439-v2.pdf

Pseudomeisserite-(NH4), a new mineral with a novel uranyl-sulfate linkage from the Blue Lizard mine, San Juan County, Utah, USA

Autor: Barbara P. Nash, Jakub Plášil, Anthony R. Kampf, Travis A. Olds, Joe Marty

Publikováno v: Mineralogical Magazine. 84:435-443

The new mineral pseudomeisserite-(NH4) (IMA2018-166), (NH4,K)2Na4[(UO2)2(SO4)5]⋅4H2O, was found in the Blue Lizard mine, San Juan County, Utah, USA, where it occurs as light yellow prisms in a secondary assemblage with belakovskiite, blödite, chan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13341559ae48272090b1289ed128a309
https://doi.org/10.1180/mgm.2020.17

Antofagastaite, Na2Ca(SO4)2·1.5H2O, a new mineral related to syngenite

Autor: Dmitry I. Belakovskiy, Igor V. Pekov, Vasiliy O. Yapaskurt, Anna G. Turchkova, Natalia N. Koshlyakova, Gerhard Möhn, Vadim M. Kovrugin, Oleg I. Siidra, Nikita V. Chukanov

Publikováno v: Mineralogical Magazine. 83:781-790

The new mineral antofagastaite, ideally Na2Ca(SO4)2·1.5H2O, was found in the oxidation zone of sulfide–quartz veins at the abandoned Coronel Manuel Rodríguez mine, Mejillones, Antofagasta Province, Antofagasta Region, Chile. It is associated with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b52612f761e92b50e1129e378cc6e7a
https://doi.org/10.1180/mgm.2019.17

Dehydration of blödite, Na2Mg(SO4)2(H2O)4, and leonite, K2 Mg(SO4)2(H2O)4

Autor: Anna Katerinopoulou, Paola Comodi, Renie Birkedal, Tonči Balić-Žunić

Publikováno v: European Journal of Mineralogy. 28:33-42

The high-temperature behaviour of blodite (Na 2 Mg(SO 4 ) 2 (H 2 O) 4 ) and leonite (K 2 Mg(SO 4 ) 2 (H 2 O) 4 ) was studied by X-ray diffraction on powder samples in open capillaries and by thermo-gravimetry/calorimetry. The stability of blodite and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::552c1443d40e4e32b0fb3e6b472f2a7c
https://doi.org/10.1127/ejm/2015/0027-2487