| Masalehdani, M. N.-N., Mees, F., Dubois, M., Coquinot, Y., Potdevin, J.-L., Fialin, M., Blanc-Valleron, M.-M. (2009) CONDENSATE MINERALS FROM A BURNING COAL-WASTE HEAP IN AVION, NORTHERN FRANCE. The Canadian Mineralogist, 47 (3) 573-591 doi:10.3749/canmin.47.3.573 | Journal (article/letter/editorial) | HEAP IN AVION, NORTHERN FRANCE M. Naze-Nancy MASALEHDANI§ UniversitĂŠ des Sciences et Technologies de Lille...Bâtiment SN5, Fâ59655 Villeneuve dâAscq, Cedex, France Florias MEES Department of Geology and Mineralogy...Technologies de Lille 1, UMR 8157, GĂŠosystèmes, Bâtiment SN5, Fâ59655 Villeneuve dâAscq, Cedex, France Yvan...Centre et DĂŠpartement de Recherche, 4, Quai François-Mitterand, Fâ75001 Paris, France Jean-Luc POTDEVIN...Technologies de Lille 1, UMR 8157, GĂŠosystèmes, Bâtiment SN5, Fâ59655 Villeneuve dâAscq, Cedex, France Michel | | Pekov, I. V., Zelenski, M. E., Zubkova, N. V., Yapaskurt, V. O., Chukanov, N. V., Belakovskiy, D. I., Pushcharovsky, D. Y. (2012) Calciolangbeinite, K2Ca2(SO4)3, a new mineral from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 76 (3) 673-682 doi:10.1180/minmag.2012.076.3.16 | Journal (article/letter/editorial) | K2Ca2(SO4)3, is the Ca-dominant analogue of langbeinite. It occurs in sublimates at the Yadovitaya fumarole...Kamchatka, Russia. The mineral is associated with langbeinite, piypite, hematite, rutile, pseudobrookite, orthoclase...occurs in complex epitaxial intergrowths with langbeinite. Calciolangbeinite is transparent and colourless...to R = 0.0447. The structure is based on the langbeinite-type three-dimensional complex framework, which...signiďŹcantly distorted octahedra. Calciolangbeinite and langbeinite are isostructural and form a solid-solution series |
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