Savelievaite, Mg 2 CrO 2 (BO 3 ), the first natural borate with species-defining Cr 3+ and the ludwigite–savelievaite isomorphous series

Amableite-(Ce), Na 15 [(Ce 1.5 Na 1.5 )Mn 3 ]Mn 2 Zr 3 □Si[Si 24 O 69 (OH) 3 ](OH) 2 ⋅H 2 O, a new eudialyte-group mineral from Saint-Amable Sill, Québec, Canada

Thermal behaviour of filatovite – a rare aluminoarsenate mineral of the feldspar group

A new mineral cuprodobrovolskyite Na 4 Cu(SO 4 ) 3 from the Tolbachik volcano (Kamchatka, Russia) and relationships in the family of natural anhydrous Na–Cu sulfates

Kalyuzhnyite-(Ce), NaKCaSrCeTi(Si 8 O 21 )OF(H 2 O) 3, a new mineral from the Darai-Pioz alkaline massif, Tien-Shan mountains, Tajikistan: mineral description, crystal structure and a new double (Si 8 O 21 ) sheet

Letnikovite-(Ce), (Na□)Ca 2 Ce 2 [Si 7 O 17 (OH)]F 4 (H 2 O) 4, a new mineral from the Darai-Pioz alkaline massif, Tajikistan: mineral description, crystal structure and a new single [Si 7 O 17 (OH)] sheet

Mangani-eckermannite, NaNa 2 (Mg 4 Mn 3+ )Si 8 O 22 (OH) 2 , a new amphibole from Tanohata Mine, Iwate Prefecture, Japan

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XX. Evseevite, Na 2 Mg(AsO 4 )F, the first natural arsenate with an antiperovskite structure

Napoliite, Pb 2 OFCl, a new mineral from Vesuvius volcano, and its relationship with dimorphous rumseyite

Bakakinite, Ca 2 V 2 O 7 , a new mineral from fumarolic exhalations of the Tolbachik volcano, Kamchatka, Russia

Selsurtite, (H 3 O) 12 Na 3 (Ca 3 Mn 3 )(Na 2 Fe)Zr 3 □Si[Si 24 O 69 (OH) 3 ](OH)Cl⋅H 2 O, a new eudialyte-group mineral from the Lovozero alkaline massif, Kola Peninsula, Russia

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIX. Axelite, Na 14 Cu 7 (AsO 4 ) 8 F 2 Cl 2

Kalithallite, K 3 Tl 3+ Cl 6 ⋅2H 2 O, a new mineral with trivalent thallium from the Tolbachik volcano, Kamchatka, Russia

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XVIII. Khrenovite, Na 3 Fe 3+ 2 (AsO 4 ) 3 , the member with the highest sodium in the alluaudite supergroup

Calciolangbeinite- O , a natural orthorhombic modification of K 2 Ca 2 (SO 4 ) 3 , and the langbeinite–calciolangbeinite solid-solution system

Kaznakhtite, Ni 6 Co 3+ 2 (CO 3 )(OH) 16 ⋅4H 2 O, a new natural layered double hydroxide, the member of the hydrotalcite supergroup

Reznitskyite, CaMg(VO 4 )F, a new mineral from the Tolbachik volcano, Kamchatka, Russia and the first vanadate with a titanite-type structure

Complex hydrogen bonding and thermal behaviour over a wide temperature range of kainite KMg(SO 4 )Cl⋅2.75H 2 O

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