 | Siidra, Oleg I., Lukina, Evgeniya A., Nazarchuk, Evgeniy V., Depmeier, Wulf, Bubnova, Rimma S., Agakhanov, Atali A., Avdontseva, Evgeniya Yu., Filatov, Stanislav K., Kovrugin, Vadim M. (2018) Saranchinaite, Na2Cu(SO4)2, a new exhalative mineral from Tolbachik volcano, Kamchatka, Russia, and a product of the reversible dehydration of kröhnkite, Na2Cu(SO4)2(H2O)2. Mineralogical Magazine, 82 (2) 257-274 doi:10.1180/minmag.2017.081.037 | Journal (article/letter/editorial) | | for both kröhnkite (from La Vendida mine, Antofagasta Region, Chile) and saranchinaite. During thermal...with subsequent decomposition into tenorite CuO, thénardite Na2SO4 and unidentified phases. K E Y WO R D...1879) from samples found in the famous Chuquicamata Mine in Chile. Kröhnkite crystals up to 5 cm long are...studies on kröhnkite from La Vendida mine, Antofagasta Region, Chile, and on the new mineral species saranchinaite...CuZn(SO4)2 (Siidra et al., 2018), chalcocyanite CuSO4, thénardite Na2SO4, aphthitalite K3Na (SO4)2 and hematite |  | Majzlan, Juraj, Zittlau, Arne H., Grevel, Klaus-Dieter, Schliesser, Jacob, Woodfield, Brian F., Dachs, Edgar, Števko, Martin, Chovan, Martin, Plášil, Jakub, Sejkora, Jiří, Milovská, Stanislava (2015) Thermodynamic Properties and Phase Equilibria of the Secondary Copper Minerals Libethenite, Olivenite, Pseudomalachite, Kröhnkite, Cyanochroite, and Devilline. The Canadian Mineralogist, 53 (5) 937-960 doi:10.3749/canmin.1400066 | Journal (article/letter/editorial) | | The kröhnkite sample contains a discernible thénardite (Na2SO4) impurity (Fig. 2a) and a fullprofile...of the powder XRD data indicates 2 mass % of thénardite in the mixture. All of the samples consist of...studied in this work. (a) Kröhnkite crystals with thénardite impurity (minute white crystals with rhombic...as reference compounds (Zittlau et al. 2013). Thénardite (Na2SO4) and arcanite (K2SO4) dissolve easily...easily in water or HCl. The tendency of thénardite to hydrate may introduce a possible source of systematic |
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