New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XVI. Yurgensonite, K₂SnTiO₂(AsO₄)₂, the first natural tin arsenate, and the katiarsite–yurgensonite isomorphous series

Abstract

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New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XX. Evseevite, Na2Mg(AsO4)F, the first natural arsenate with an antiperovskite structure

“…This paper continues the series of articles in which we characterise new arsenates from the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption 1975–1976, Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia. Twenty two new mineral species have been described in the previous papers of 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 , 2015b), 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 , 2015a), katiarsite KTiO(AsO 4 ) (Pekov et al , 2016b), melanarsite K 3 Cu 7 Fe 3+ O 4 (AsO 4 ) 4 (Pekov et al , 2016a), pharmazincite KZnAsO 4 (Pekov et al , 2017), arsenowagnerite Mg 2 (AsO 4 )F (Pekov et al , 2018b), arsenatrotitanite NaTiO(AsO 4 ) (Pekov et al , 2019d), 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 , 2019e), anatolyite Na 6 (Ca,Na)(Mg,Fe 3+ ) 3 Al(AsO 4 ) 6 (Pekov et al , 2019b), zubkovaite Ca 3 Cu 3 (AsO 4 ) 4 (Pekov et al , 2019a), pansnerite K 3 Na 3 Fe 3+ 6 (AsO 4 ) 8 (Pekov et al , 2020c), badalovite NaNaMg(MgFe 3+ )(AsO 4 ) 3 (Pekov et al , 2020b), calciojohillerite NaCaMgMg 2 (AsO 4 ) 3 (Pekov et al , 2021a), yurgensonite K 2 SnTiO 2 (AsO 4 ) 2 (Pekov et al , 2021b), paraberzeliite NaCaCaMg 2 (AsO 4 ) 3 (Pekov et al , 2022a), khrenovite Na 3 Fe 3+ 2 (AsO 4 ) 3 (Pekov et al , 2022b), and axelite Na 14 Cu 7 (AsO 4 ) 8 F 2 Cl 2 (Pekov et al , 2023).…”

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XVIII. Khrenovite, Na3Fe3+2(AsO4)3, the member with the highest sodium in the alluaudite supergroup

“…This paper continues the series of descriptions of new arsenate mineral species found in the Arsenatnaya fumarole situated at the apical part of the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption 1975–1976 (NB GTFE), Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia (55°41'N 160°14'E, 1200 m a.s.l.). Twenty new minerals have been characterised in the previous papers of 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 , 2016a), melanarsite K 3 Cu 7 Fe 3+ O 4 (AsO 4 ) 4 (Pekov et al , 2016b), pharmazincite KZnAsO 4 (Pekov et al , 2017), arsenowagnerite Mg 2 (AsO 4 )F (Pekov et al , 2018c), 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), pansnerite K 3 Na 3 Fe 3+ 6 (AsO 4 ) 8 (Pekov et al , 2020a), badalovite NaNaMg(MgFe 3+ )(AsO 4 ) 3 (Pekov et al , 2020b), calciojohillerite NaCaMgMg 2 (AsO 4 ) 3 (Pekov et al , 2021a), yurgensonite K 2 SnTiO 2 (AsO 4 ) 2 (Pekov et al , 2021b) and paraberzeliite NaCaCaMg 2 (AsO 4 ) 3 (Pekov et al , 2022).…”

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIX. Axelite, Na14Cu7(AsO4)8F2Cl2

“…The present article continues the series of papers devoted to descriptions of new arsenates from the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption 1975–1976, Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia. Twenty one new minerals were characterised in the previous papers of the series, namely 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 , 2016a), melanarsite K 3 Cu 7 Fe 3+ O 4 (AsO 4 ) 4 (Pekov et al , 2016b), pharmazincite KZnAsO 4 (Pekov et al , 2017a), 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), pansnerite K 3 Na 3 Fe 3+ 6 (AsO 4 ) 8 (Pekov et al , 2020a), badalovite NaNaMg(MgFe 3+ )(AsO 4 ) 3 (Pekov et al , 2020b), calciojohillerite NaCaMgMg 2 (AsO 4 ) 3 (Pekov et al , 2021a), yurgensonite K 2 SnTiO 2 (AsO 4 ) 2 (Pekov et al , 2021b), paraberzeliite NaCaCaMg 2 (AsO 4 ) 3 (Pekov et al , 2022a) and khrenovite Na 3 Fe 3+ 2 (AsO 4 ) 3 (Pekov et al , 2022b).…”