... reflections of the powder X-ray diffraction pattern [ d , Å ( I )( hkl )] are: 7.38(68)(1 0 0), 4.259(46)(1 1 0), 3.503(15)(2 0 1), 3.383(1 0 0)(1 1 2), 2.616(13)(2 0 3), 2.493(14)(2 1 2), 2.249(14)(3 0 2) and 2.130(17)(1 0 5, 2 2 0). Genplesite is a member of the fleischerite group. Its crystal structure...

...)3(CO3)F3O: modular structure and disorder of a new mineral with single and triple antiperovskite layers. Acta Crystallographica B 74: 492-501 Pekov IV and 7 coauthors (2018) Genplesite, Ca3Sn(SO4)2(OH)6 3H2O, a new mineral of the fleischerite group: first occurrence of a tin sulfate in nature...

.... , Britvin , S.N. , Lykova , I.S. , Pushcharovsky , D.Yu. ( 2018 ): Genplesite, Ca 3 Sn(SO 4 ) 2 (OH) 6 ∙ 3H 2 O, a new mineral of the fleischerite group: first occurrence of a tin sulfate in nature . Eur. J. Mineral ., DOI: 10.1127/ejm/2018/0030-2722 . in press  Scordari , F...

...F igure 3. ( a ) Crystal structure of carraraite, as seen along c. The sulfate and carbonate groups are represented as orderly distributed in space group P 6 3 . Actually the distribution is disordered, with sulfate groups pointing up and down, in space group P 6 3 / m . Germanium octahedra...

...) Genplesite, Ca 3 Sn(SO 4 ) 2 (OH) 6 ·3H 2 O, a new mineral of the fleischerite group: first occurrence of a tin sulfate in nature. European Journal of Mineralogy, 30(2), 375–382. Genplesite (IMA 2014-034), ideally Ca 3 Sn(SO 4 ) 2 (OH) 6 ·3H 2 O, hexagonal, is the first natural tin sulfate found...

..., copiapite, epsomite, fleischerite, hexahydrite and ilesite groups, with dominant numbers in the superior and excellent categories. The picromerite group has five of its members in the superior category, and one in the good category. At the other extreme, all three of the species in the felsöbányaite group...

... V. Pekov*, Evgeny V. Sereda, Natalia V. Zubkova, Vasily O. Yapaskurt, Nikita V. Chukanov, Sergey N. Britvin, Inna S. Lykova and Dmitry Y. Pushcharovsky *E-mail: [email protected] Fleischerite group Hexagonal: P 6 3 / mmc ; structure determined A dimorph of aluminium...

... of the structure of chukhrovite as (FCa 4 ) tetra-hedra (large tetrahedra), (AlF 6 ) octahedra, (SO 4 ) tetra-hedra (small tetrahedra), and (H 2 O) groups (circles); (e) the column of ( M Ø 6 ) octahedra and triplets of (CaØ 8 ) polyhedra in the minerals of the ettringite and fleischerite groups; (f) the triplet...

... and include many mineral groups such as the hexahydrite, epsomite, melanterite, picromerite, ettringite and fleischerite groups ( Hawthorne et al. , 2000 ). The key to the stability of the unconnected acid arsenate or phosphate group is an extensive network of hydrogen bonds to the O atoms of the group...

..., Pb 3 Sb(SO 4 )(AsO 4 )(OH) 6 ·3H 2 O ( Sima 1998 ), the disordered distribution of As and S is likely, by analogy with other fleischerite-group members. In the crystal structure of juansilvaite, Na 5 Al 3 [AsO 3 (OH)] 4 [AsO 2 (OH) 2 ] 2 (SO 4 ) 2 ·4H 2 O, sulfate groups and acid arsenate groups...

... 0.04 Mn 0.02 Mg 0.01 ) ∑0.83 (Ti 2.90 Nb 1.16 ) ∑4.06 (Si 8.00 Al 0.04 ) ∑8.04 O 24.00 [O 2.90 (OH) 1.10 ] ∑4.00 ·7.00H 2 O. Relationship to other species : It is a member of the gutkovaite subgroup of the labuntsovite group. Name : After Al eksey S. Sakharov (1910–1996), Russian...

... is in the Naturhistorisches Museum, Basel, and in the Mineralogical Institute, University of Basel, Switzerland. J.L.J. . P. Orlandi, M. Pasero, N. Rotiroti, F. Olmi, F. Demartin, Y. Moëlo (2004) Gramaccioliite-(Y), a new mineral of the crichtonite group from Stura Valley, Piedmont, Italy. Eur. J. Mineral., 16, 171...