Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Aleutite [Cu5O2](AsO4)(VO4)·(Cu0.5□0.5)Cl, a new complex salt-inclusion mineral with Cu2+ substructure derived from a Kagome-net. / Siidra, Oleg I.; Nazarchuk, Evgeny V.; Agakhanov, Atali A.; Polekhovsky, Yury S.
в: Mineralogical Magazine, Том 83, № 6, 2019, стр. 847-853.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Aleutite [Cu5O2](AsO4)(VO4)·(Cu0.5□0.5)Cl, a new complex salt-inclusion mineral with Cu2+ substructure derived from a Kagome-net
AU - Siidra, Oleg I.
AU - Nazarchuk, Evgeny V.
AU - Agakhanov, Atali A.
AU - Polekhovsky, Yury S.
PY - 2019
Y1 - 2019
N2 - Aleutite, ideally [Cu5O2](ASO4)(VO4)·(Cu0.5□0.5)Cl, was found in the Yadovitaya fumarole of the Second scoria cone of the Great Fissure Tolbachik eruption, Kamchatka Peninsula, Russia. Aleutite occurs as individual crystals in the masses of polycrystalline anhydrite. Aleutite is monoclinic, C2/m, a = 18.090(2) Å, b = 6.2284(6) Å, c = 8.2465(9) Å, β = 90.597(2)°, V = 929.1(2) Å3 and Z = 4 (from single-crystal X-ray diffraction data). The empirical formula calculated on the basis of (As + V+Mo + Fe3+) = 2 atoms per formula unit is Cu5.40Zn0.05Ca0.01As1.09V0.84Mo0.04Fe0.03K0.05Pb0.02Rb0.01Cs0.01O9.97Cl1.07. The crystal structure was solved by direct methods and refined to an agreement index R1 = 0.066. Aleutite has a new structure type. Aleutite is unique amongst natural and synthetic copper vanadates and arsenates, as it has As5+ and V5+ cations ordered over two tetrahedral sites. The topology of oxocentred bands in aleutite is novel and has not been described before in minerals and synthetic materials. The structural architecture of the band in aleutite can be derived from a kagome network and represents a one-dimensional slice from it. In addition, aleutite is an interesting and complex example of a natural salt-inclusion phase.
AB - Aleutite, ideally [Cu5O2](ASO4)(VO4)·(Cu0.5□0.5)Cl, was found in the Yadovitaya fumarole of the Second scoria cone of the Great Fissure Tolbachik eruption, Kamchatka Peninsula, Russia. Aleutite occurs as individual crystals in the masses of polycrystalline anhydrite. Aleutite is monoclinic, C2/m, a = 18.090(2) Å, b = 6.2284(6) Å, c = 8.2465(9) Å, β = 90.597(2)°, V = 929.1(2) Å3 and Z = 4 (from single-crystal X-ray diffraction data). The empirical formula calculated on the basis of (As + V+Mo + Fe3+) = 2 atoms per formula unit is Cu5.40Zn0.05Ca0.01As1.09V0.84Mo0.04Fe0.03K0.05Pb0.02Rb0.01Cs0.01O9.97Cl1.07. The crystal structure was solved by direct methods and refined to an agreement index R1 = 0.066. Aleutite has a new structure type. Aleutite is unique amongst natural and synthetic copper vanadates and arsenates, as it has As5+ and V5+ cations ordered over two tetrahedral sites. The topology of oxocentred bands in aleutite is novel and has not been described before in minerals and synthetic materials. The structural architecture of the band in aleutite can be derived from a kagome network and represents a one-dimensional slice from it. In addition, aleutite is an interesting and complex example of a natural salt-inclusion phase.
KW - arsenates
KW - copper
KW - kagome nets
KW - new minerals
KW - saleutite
KW - salt-inclusion solids
KW - Tolbachik volcano
KW - vanadates
UR - http://www.scopus.com/inward/record.url?scp=85076815088&partnerID=8YFLogxK
U2 - 10.1180/mgm.2019.42
DO - 10.1180/mgm.2019.42
M3 - Article
AN - SCOPUS:85076815088
VL - 83
SP - 847
EP - 853
JO - Mineralogical Magazine
JF - Mineralogical Magazine
SN - 0026-461X
IS - 6
ER -
ID: 51627358