On the crystal chemistry of sulfur-rich lazurite, ideally Na 7 Ca(Al 6 Si 6 O 24 )(SO 4 )(S 3 ) – ·nH 2 O

Beshtauite, (NH 4 ) 2 (UO 2 )(SO 4 ) 2 ·2H 2 O, a new mineral from Mount Beshtau, Northern Caucasus, Russia

Césarferreiraite, Fe 2+ Fe 2 3+ (AsO 4 ) 2 (OH) 2 ·8H 2 O, from Eduardo mine, Conselheiro Pena, Minas Gerais, Brazil: Second arsenate in the laueite mineral group

Correianevesite, Fe 2+ Mn 2 2+ (PO 4 ) 2 ·3H 2 O, a new reddingite-group mineral from the Cigana mine, Conselheiro Pena, Minas Gerais, Brazil

Hydrokenomicrolite, (□,H 2 O) 2 Ta 2 (O,OH) 6 (H 2 O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil

Witzkeite: A new rare nitrate-sulphate mineral from a guano deposit at Punta de Lobos, Chile

Krasheninnikovite, KNa 2 CaMg(SO 4 ) 3 F, a new mineral from the Tolbachik volcano, Kamchatka, Russia

Mejillonesite, a new acid sodium, magnesium phosphate mineral, from Mejillones, Antofagasta, Chile

Footemineite, the Mn-analog of atencioite, from the Foote mine, Kings Mountain, Cleveland County, North Carolina, U.S.A., and its relationship with other roscherite-group minerals

Niksergievite, [Ba 1.33 Ca 0.67 Al(CO 3 )(OH) 4 ][Al 2 (AlSi 3 O 10 )(OH) 2 ]· n H 2 O, a new phyllosilicate related to the surite-ferrisurite series

Incorporation of sodium into the chlorite structure: the crystal structure of glagolevite, Na(Mg,Al) 6 [Si 3 AlO 10 ](OH,O) 8