New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. IX. Arsenatrotitanite, NaTiO(AsO4)

Abstract

The new durangite-group mineral arsenatrotitanite, ideally NaTiO(AsO 4 ), was found in the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIV. Badalovite, NaNaMg(MgFe3+)(AsO4)3, a member of the alluaudite group

“…This paper continues the series of articles on new arsenate minerals from the Arsenatnaya fumarole located at the apical part of the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption 1975–1976, Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia (55°41′N, 160°14′E, 1200 m asl). Sixteen new species have been characterised in previous articles in the series: yurmarinite Na 7 (Fe 3+ ,Mg,Cu) 4 (AsO 4 ) 6 (Pekov et al ., 2014a), two polymorphs of Cu 4 O(AsO 4 ) 2 , ericlaxmanite and kozyrevskite (Pekov et al ., 2014b), popovite Cu 5 O 2 (AsO 4 ) 2 (Pekov et al ., 2015a), structurally related shchurovskyite K 2 CaCu 6 O 2 (AsO 4 ) 4 and dmisokolovite K 3 Cu 5 AlO 2 (AsO 4 ) 4 (Pekov et al ., 2015b), katiarsite KTiO(AsO 4 ) (Pekov et al ., 2016b), melanarsite K 3 Cu 7 Fe 3+ O 4 (AsO 4 ) 4 (Pekov et al ., 2016c), pharmazincite KZnAsO 4 (Pekov et al ., 2017), arsenowagnerite Mg 2 (AsO 4 )F (Pekov et al ., 2018b), arsenatrotitanite NaTiO(AsO 4 ) (Pekov et al ., 2019a), the two isostructural minerals edtollite K 2 NaCu 5 Fe 3+ O 2 (AsO 4 ) 4 and alumoedtollite K 2 NaCu 5 AlO 2 (AsO 4 ) 4 (Pekov et al ., 2019b), anatolyite Na 6 (Ca,Na)(Mg,Fe 3+ ) 3 Al(AsO 4 ) 6 (Pekov et al ., 2019c), zubkovaite Ca 3 Cu 3 (AsO 4 ) 4 (Pekov et al ., 2019d) and pansnerite K 3 Na 3 Fe 3+ 6 (AsO 4 ) 8 (Pekov et al ., 2020).…”

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XI. Anatolyite, Na6(Ca,Na)(Mg,Fe3+)3Al(AsO4)6

“…(2014 a , 2018 a ). In particular, 13 new arsenates from this locality have been characterised: yurmarinite Na 7 (Fe 3+ ,Mg,Cu) 4 (AsO 4 ) 6 (Pekov et al ., 2014 a ), two polymorphs of Cu 4 O(AsO 4 ) 2 , ericlaxmanite and kozyrevskite (Pekov et al ., 2014 b ), popovite Cu 5 O 2 (AsO 4 ) 2 (Pekov et al ., 2015 b ), structurally related shchurovskyite K 2 CaCu 6 O 2 (AsO 4 ) 4 and dmisokolovite K 3 Cu 5 AlO 2 (AsO 4 ) 4 (Pekov et al ., 2015 c ), katiarsite KTiO(AsO 4 ) (Pekov et al ., 2016 b ), melanarsite K 3 Cu 7 Fe 3+ O 4 (AsO 4 ) 4 (Pekov et al ., 2016 c ), pharmazincite KZnAsO 4 (Pekov et al ., 2017), arsenowagnerite Mg 2 (AsO 4 )F (Pekov et al ., 2018 b ), arsenatrotitanite NaTiO(AsO 4 ) (Pekov et al ., 2019 a ), and isostructural minerals edtollite K 2 NaCu 5 Fe 3+ O 2 (AsO 4 ) 4 and alumoedtollite K 2 NaCu 5 AlO 2 (AsO 4 ) 4 (Pekov et al ., 2019 b ).…”

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XII. Zubkovaite, Ca3Cu3(AsO4)4

“…This paper is part of the series of articles containing descriptions of new arsenate minerals from the Arsenatnaya fumarole of the Tolbachik volcano at the Kamchatka Peninsula, Far-Eastern Region, Russia. Fourteen new arsenate species from this fumarole have already been characterised: yurmarinite Na 7 (Fe 3+ ,Mg,Cu) 4 (AsO 4 ) 6 (Pekov et al ., 2014 a ), two polymorphs of Cu 4 O(AsO 4 ) 2 , ericlaxmanite and kozyrevskite (Pekov et al ., 2014 b ), popovite Cu 5 O 2 (AsO 4 ) 2 (Pekov et al ., 2015 a ), structurally related shchurovskyite K 2 CaCu 6 O 2 (AsO 4 ) 4 and dmisokolovite K 3 Cu 5 AlO 2 (AsO 4 ) 4 (Pekov et al ., 2015 b ), katiarsite KTiO(AsO 4 ) (Pekov et al ., 2016 a ), melanarsite K 3 Cu 7 Fe 3+ O 4 (AsO 4 ) 4 (Pekov et al ., 2016 b ), pharmazincite KZnAsO 4 (Pekov et al ., 2017), arsenowagnerite Mg 2 (AsO 4 )F (Pekov et al ., 2018 b ), arsenatrotitanite NaTiO(AsO 4 ) (Pekov et al ., 2019 a ), pair of isostructural minerals edtollite K 2 NaCu 5 Fe 3+ O 2 (AsO 4 ) 4 and alumoedtollite K 2 NaCu 5 AlO 2 (AsO 4 ) 4 (Pekov et al ., 2019 b ), and anatolyite Na 6 (Ca,Na)(Mg,Fe 3+ ) 3 Al(AsO 4 ) 6 (Pekov et al ., 2019 c ).…”