Research output: Contribution to journal › Article › peer-review
Chirvinskyite, (Na,ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3-(Si2O7)4(OH,O,F)12, a new mineral with a modular wallpaper structure, from the khibiny alkaline massif (kola peninsula, Russia). / Yakovenchuk, Victor N.; Pakhomovsky, Yakov A.; Panikorovskii, Taras L.; Zolotarev, Andrey A.; Mikhailova, Julia A.; Bocharov, Vladimir N.; Krivovichev, Sergey V.; Ivanyuk, Gregory Yu.
In: Minerals, Vol. 9, No. 4, 219, 01.04.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Chirvinskyite, (Na,ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3-(Si2O7)4(OH,O,F)12, a new mineral with a modular wallpaper structure, from the khibiny alkaline massif (kola peninsula, Russia)
AU - Yakovenchuk, Victor N.
AU - Pakhomovsky, Yakov A.
AU - Panikorovskii, Taras L.
AU - Zolotarev, Andrey A.
AU - Mikhailova, Julia A.
AU - Bocharov, Vladimir N.
AU - Krivovichev, Sergey V.
AU - Ivanyuk, Gregory Yu.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3(Si2O7)4(OH,O,F)12, is a new wöhlerite-related zirconotitano-sorosilicate. It is triclinic, P 1¯, a = 7.0477(5), b = 9.8725(5), c = 12.2204(9) Å, α = 77.995(5), β = 82.057(6), γ = 89.988(5)°, V = 823.35(9) Å3, Z = 1. The mineral was found in albitized alkaline pegmatites in a foyaite of the Mt. Takhtarvumchorr (Khibiny alkaline massif, Kola Peninsula, Russia, N 67°40′, E 33°33′). Chirvinskyite forms sheaf-like and radiated aggregates (up to 6 mm in diameter) of split fibrous crystals hosted by saccharoidal fluorapatite and albite. The mineral is pale cream in color, with a silky luster and a white streak. The cleavage is not recognized. Mohs hardness is 5. Chirvinskyite is biaxial (-), α 1.670(2), β 1.690(2), γ 1.705(2) (589 nm), 2Vcalc = 80.9°. The calculated and measured densities are 3.41 and 3.07(2) g·cm−3, respectively. The empirical formula based on Si = 8 apfu is (Na9.81Ca3.28K0.01)∑13.10(Fe0.72Mn0.69□0.54Mg0.05)∑2.00(Ti1.81Nb0.19)∑2.00(Zr2.27Ti0.63)∑2.90(Si2O7)4{(OH)5.94O3.09F2.97}∑12.00. Chirvinskyite belongs to a new structure type of minerals and inorganic compounds and is related to the wöhlerite-group minerals. Its modular “wallpaper” structure consists of disilicate groups Si2O7 and three types of “octahedral walls”. The mineral is named in honor of Petr Nikolaevich Chirvinsky (1880-1955), Russian geologist and petrographer, head of the Petrography Department of the Perm’ State University (1943-1953), for his contributions to mineralogy and petrology, including studies of the Khibiny alkaline massif.
AB - Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3(Si2O7)4(OH,O,F)12, is a new wöhlerite-related zirconotitano-sorosilicate. It is triclinic, P 1¯, a = 7.0477(5), b = 9.8725(5), c = 12.2204(9) Å, α = 77.995(5), β = 82.057(6), γ = 89.988(5)°, V = 823.35(9) Å3, Z = 1. The mineral was found in albitized alkaline pegmatites in a foyaite of the Mt. Takhtarvumchorr (Khibiny alkaline massif, Kola Peninsula, Russia, N 67°40′, E 33°33′). Chirvinskyite forms sheaf-like and radiated aggregates (up to 6 mm in diameter) of split fibrous crystals hosted by saccharoidal fluorapatite and albite. The mineral is pale cream in color, with a silky luster and a white streak. The cleavage is not recognized. Mohs hardness is 5. Chirvinskyite is biaxial (-), α 1.670(2), β 1.690(2), γ 1.705(2) (589 nm), 2Vcalc = 80.9°. The calculated and measured densities are 3.41 and 3.07(2) g·cm−3, respectively. The empirical formula based on Si = 8 apfu is (Na9.81Ca3.28K0.01)∑13.10(Fe0.72Mn0.69□0.54Mg0.05)∑2.00(Ti1.81Nb0.19)∑2.00(Zr2.27Ti0.63)∑2.90(Si2O7)4{(OH)5.94O3.09F2.97}∑12.00. Chirvinskyite belongs to a new structure type of minerals and inorganic compounds and is related to the wöhlerite-group minerals. Its modular “wallpaper” structure consists of disilicate groups Si2O7 and three types of “octahedral walls”. The mineral is named in honor of Petr Nikolaevich Chirvinsky (1880-1955), Russian geologist and petrographer, head of the Petrography Department of the Perm’ State University (1943-1953), for his contributions to mineralogy and petrology, including studies of the Khibiny alkaline massif.
KW - Albitite
KW - Chirvinskyite
KW - Khibiny massif
KW - Modular crystal structure
KW - New mineral
KW - Titanozircono-sorosilicate
UR - http://www.scopus.com/inward/record.url?scp=85067993051&partnerID=8YFLogxK
UR - https://www.mdpi.com/2075-163X/9/4
U2 - 10.3390/min9040219
DO - 10.3390/min9040219
M3 - Article
AN - SCOPUS:85067993051
VL - 9
JO - Minerals
JF - Minerals
SN - 2075-163X
IS - 4
M1 - 219
ER -
ID: 45423767