New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XVII. Paraberzeliite, NaCaCaMg 2 (AsO 4 ) 3 , an alluaudite-group member dimorphous with berzeliite

Sapozhnikovite, Na 8 (Al 6 Si 6 O 24 )(HS) 2 , a new sodalite-group mineral from the Lovozero alkaline massif, Kola Peninsula

Erssonite, CaMg 7 Fe 3+ 2 (OH) 18 (SO 4 ) 2 ⋅12H 2 O, a new hydrotalcite-supergroup mineral from Långban, Sweden

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XVI. Yurgensonite, K 2 SnTiO 2 (AsO 4 ) 2 , the first natural tin arsenate, and the katiarsite–yurgensonite isomorphous series

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XV. Calciojohillerite, NaCaMgMg 2 (AsO 4 ) 3 , a member of the alluaudite group

Chiyokoite, Ca 3 Si(CO 3 )[B(OH) 4 ]O(OH) 5 ·12H 2 O, a new ettringite-group mineral from the Fuka mine, Okayama Prefecture, Japan

Eleomelanite, (K 2 Pb)Cu 4 O 2 (SO 4 ) 4 , a new mineral species from the Tolbachik Volcano, Kamchatka, Russia

Vittinkiite, MnMn 4 [Si 5 O 15 ], a member of the rhodonite group with a long history: definition as a mineral species

Ammoniotinsleyite, (NH 4 )Al 2 (PO 4 ) 2 (OH)⋅2H 2 O, a new mineral species from the guano deposit at Pabellón de Pica, Iquique Province, Chile

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIV. Badalovite, NaNaMg(MgFe 3+ )(AsO 4 ) 3 , a member of the alluaudite group

Alkali sulfates with aphthitalite-like structures from fumaroles of the Tolbachik volcano, Kamchatka, Russia. II. A new mineral, natroaphthitalite, and new data on belomarinaite

Yarzhemskiite, K[B 5 O 7 (OH) 2 ]⋅H 2 O, a new mineral from the Chelkar salt dome, Western Kazakhstan

Alkali sulfates with aphthitalite-like structures from fumaroles of the Tolbachik Volcano, Kamchatka, Russia. I. MetathÉnardite, a natural high-temperature modification of Na 2 SO 4

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIII. Pansnerite, K 3 Na 3 Fe 3+ 6 (AsO 4 ) 8

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XII. Zubkovaite, Ca 3 Cu 3 (AsO 4 ) 4

Kamenevite, K 2 TiSi 3 O 9 ·H 2 O, a new mineral with microporous titanosilicate framework from the Khibiny alkaline complex, Kola peninsula, Russia

Antofagastaite, Na 2 Ca(SO 4 ) 2 ·1.5H 2 O, a new mineral related to syngenite

The new mineral novograblenovite, (NH 4 ,K)MgCl 3 ·6H 2 O from the Tolbachik volcano, Kamchatka, Russia: mineral description and crystal structure

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XI. Anatolyite, Na 6 (Ca,Na)(Mg,Fe 3+ ) 3 Al(AsO 4 ) 6

Alexkhomyakovite, K 6 (Ca 2 Na)(CO 3 ) 5 Cl∙6H 2 O, a new mineral from the Khibiny alkaline complex, Kola peninsula, Russia