Research output: Contribution to journal › Article › peer-review
Belousovite, KZn(SO4)Cl, a new sulfate mineral from the Tolbachik volcano with apophyllite sheet-topology. / Siidra , Oleg I. ; Nazarchuk, Evgeny V. ; Lukina, Evgeniya A. ; Zaitsev, Anatoly N. ; Shilovskikh, Vladimir V. .
In: Mineralogical Magazine, Vol. 82, No. 5, 10.2018, p. 1079–1088.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Belousovite, KZn(SO4)Cl, a new sulfate mineral from the Tolbachik volcano with apophyllite sheet-topology.
AU - Siidra , Oleg I.
AU - Nazarchuk, Evgeny V.
AU - Lukina, Evgeniya A.
AU - Zaitsev, Anatoly N.
AU - Shilovskikh, Vladimir V.
PY - 2018/10
Y1 - 2018/10
N2 - Belousovite, ideally KZn(SO4)Cl, was found in a Yadovitaya fumarole of the Second scoria cone of the North Breach of the Great Tolbachik Fissure Eruption (1975-1976), Tolbachik volcano, Kamchatka Peninsula, Russia. Belousovite occurs as irregularly-shaped grains and in the form of microcrystalline masses associated with kamchatkite, langbeinite, euchlorine, anglesite and zincite. Belousovite is monoclinic, P2(1)/c, a = 6.8904(5), b = 9.6115(7), c = 8.2144(6) , beta = 96.582(2), V = 540.43(7) (3) and Z = 4 (from single-crystal diffraction data). The eight strongest lines of the powder X-ray diffraction pattern are [d(meas) (l)(hkl)]: 6.8451(100)(100), (3. 6401)(71)((1) over bar 21), (3.1592)(84)(1 (1) over bar2), (3.1218)(41)((2) over bar 11), (3.1140) (52)(022), (2.9812)(41)(031), (2.9121)(44)(130) and (2.0483)(19)((3) over bar 12). The chemical composition determined by the electron-microprobe analysis is (wt.%): K2O 19.55, Rb2O 0.58, ZnO 34.85, SO3 34.65, Cl 14.77, -O = Cl-2 3.34, total 101.06. The empirical formula based on O + CI = 5 apfu is K0.97Rb0.01Zn1.00S1.01O4.03Cl0.97. The simplified formula is KZn(SO4)Cl. The crystal structure was solved by direct methods and refined to R-1 = 0.029 on the basis of 1965 independent observed reflections. The structure of belousovite consists of infinite [ZnSO4Cl] layers and K(+)ions. [ZnSO4Cl] layers are formed by corner sharing mixed-ligand ZnO3Cl tetrahedra and SO4 tetrahedra. The topology of [ZnSO4Cl] layers in belousovite is identical to [Si4O10](4) layers in the minerals of the apophyllite group. A review of mixed-ligand ZnOmCln coordination polyhedra in minerals and inorganic compounds is given.
AB - Belousovite, ideally KZn(SO4)Cl, was found in a Yadovitaya fumarole of the Second scoria cone of the North Breach of the Great Tolbachik Fissure Eruption (1975-1976), Tolbachik volcano, Kamchatka Peninsula, Russia. Belousovite occurs as irregularly-shaped grains and in the form of microcrystalline masses associated with kamchatkite, langbeinite, euchlorine, anglesite and zincite. Belousovite is monoclinic, P2(1)/c, a = 6.8904(5), b = 9.6115(7), c = 8.2144(6) , beta = 96.582(2), V = 540.43(7) (3) and Z = 4 (from single-crystal diffraction data). The eight strongest lines of the powder X-ray diffraction pattern are [d(meas) (l)(hkl)]: 6.8451(100)(100), (3. 6401)(71)((1) over bar 21), (3.1592)(84)(1 (1) over bar2), (3.1218)(41)((2) over bar 11), (3.1140) (52)(022), (2.9812)(41)(031), (2.9121)(44)(130) and (2.0483)(19)((3) over bar 12). The chemical composition determined by the electron-microprobe analysis is (wt.%): K2O 19.55, Rb2O 0.58, ZnO 34.85, SO3 34.65, Cl 14.77, -O = Cl-2 3.34, total 101.06. The empirical formula based on O + CI = 5 apfu is K0.97Rb0.01Zn1.00S1.01O4.03Cl0.97. The simplified formula is KZn(SO4)Cl. The crystal structure was solved by direct methods and refined to R-1 = 0.029 on the basis of 1965 independent observed reflections. The structure of belousovite consists of infinite [ZnSO4Cl] layers and K(+)ions. [ZnSO4Cl] layers are formed by corner sharing mixed-ligand ZnO3Cl tetrahedra and SO4 tetrahedra. The topology of [ZnSO4Cl] layers in belousovite is identical to [Si4O10](4) layers in the minerals of the apophyllite group. A review of mixed-ligand ZnOmCln coordination polyhedra in minerals and inorganic compounds is given.
KW - belousovite
KW - new minerals
KW - zinc
KW - sulfates
KW - tetrahedral structures
KW - apophyllite
KW - mixed-ligand coordination
KW - Tolbachik volcano
KW - CRYSTAL-STRUCTURE
KW - POTASSIUM-CHLORIDES
KW - KAMCHATKA
KW - FUMAROLES
KW - RUSSIA
KW - ZINC
KW - OXOCHLORIDE
U2 - 10.1180/minmag.2017.081.084
DO - 10.1180/minmag.2017.081.084
M3 - Article
VL - 82
SP - 1079
EP - 1088
JO - Mineralogical Magazine
JF - Mineralogical Magazine
SN - 0026-461X
IS - 5
ER -
ID: 36118012