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)

Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3(Si2O7)4(OH,O,F)12, is a new wöhlerite–related...

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Main Authors:	Victor N. Yakovenchuk, Yakov A. Pakhomovsky, Taras L. Panikorovskii, Andrey A. Zolotarev, Julia A. Mikhailova, Vladimir N. Bocharov, Sergey V. Krivovichev, Gregory Yu. Ivanyuk
Format:	Article
Language:	English
Published:	MDPI AG 2019-04-01
Series:	Minerals
Subjects:	chirvinskyite new mineral titanozircono–sorosilicate modular crystal structure albitite Khibiny massif
Online Access:	https://www.mdpi.com/2075-163X/9/4/219

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record_format	Article
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Victor N. Yakovenchuk Yakov A. Pakhomovsky Taras L. Panikorovskii Andrey A. Zolotarev Julia A. Mikhailova Vladimir N. Bocharov Sergey V. Krivovichev Gregory Yu. Ivanyuk
spellingShingle	Victor N. Yakovenchuk Yakov A. Pakhomovsky Taras L. Panikorovskii Andrey A. Zolotarev Julia A. Mikhailova Vladimir N. Bocharov Sergey V. Krivovichev Gregory Yu. Ivanyuk Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia) Minerals chirvinskyite new mineral titanozircono–sorosilicate modular crystal structure albitite Khibiny massif
author_facet	Victor N. Yakovenchuk Yakov A. Pakhomovsky Taras L. Panikorovskii Andrey A. Zolotarev Julia A. Mikhailova Vladimir N. Bocharov Sergey V. Krivovichev Gregory Yu. Ivanyuk
author_sort	Victor N. Yakovenchuk
title	Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)
title_short	Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)
title_full	Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)
title_fullStr	Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)
title_full_unstemmed	Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)
title_sort	chirvinskyite, (na,ca)<sub>13</sub>(fe,mn,□)<sub>2</sub>(ti,nb)<sub>2</sub>(zr,ti)<sub>3</sub>-(si<sub>2</sub>o<sub>7</sub>)<sub>4</sub>(oh,o,f)<sub>12</sub>, a new mineral with a modular wallpaper structure, from the khibiny alkaline massif (kola peninsula, russia)
publisher	MDPI AG
series	Minerals
issn	2075-163X
publishDate	2019-04-01
description	Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, is a new wöhlerite–related zirconotitano–sorosilicate. It is triclinic, <i>P</i> <inline-formula> <math display="inline"> <semantics> <mrow> <mover> <mn>1</mn> <mo>¯</mo> </mover> </mrow> </semantics> </math> </inline-formula>, <i>a</i> = 7.0477(5), <i>b</i> = 9.8725(5), <i>c</i> = 12.2204(9) Å, <i>α</i> = 77.995(5), <i>β</i> = 82.057(6), <i>γ</i> = 89.988(5)°, <i>V</i> = 823.35(9) Å<sup>3</sup>, <i>Z</i> = 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 (–), <i>α</i> 1.670(2), <i>β</i> 1.690(2), <i>γ</i> 1.705(2) (589 nm), 2<i>V</i><sub>calc</sub> = 80.9°. The calculated and measured densities are 3.41 and 3.07(2) g·cm<sup>−3</sup>, respectively. The empirical formula based on Si = 8 apfu is (Na<sub>9.81</sub>Ca<sub>3.28</sub>K<sub>0.01</sub>)<sub>∑13.10</sub>(Fe<sub>0.72</sub>Mn<sub>0.69</sub>□<sub>0.54</sub>Mg<sub>0.05</sub>)<sub>∑2.00</sub> (Ti<sub>1.81</sub>Nb<sub>0.19</sub>)<sub>∑2.00</sub>(Zr<sub>2.27</sub>Ti<sub>0.63</sub>)<sub>∑2.90</sub>(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>{(OH)<sub>5.94</sub>O<sub>3.09</sub>F<sub>2.97</sub>}<sub>∑12.00</sub>. 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 Si<sub>2</sub>O<sub>7</sub> 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.
topic	chirvinskyite new mineral titanozircono–sorosilicate modular crystal structure albitite Khibiny massif
url	https://www.mdpi.com/2075-163X/9/4/219
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spelling	doaj-12089b5a094e49fd812d174cecb6b3f12020-11-25T01:06:04ZengMDPI AGMinerals2075-163X2019-04-019421910.3390/min9040219min9040219Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)Victor N. Yakovenchuk0Yakov A. Pakhomovsky1Taras L. Panikorovskii2Andrey A. Zolotarev3Julia A. Mikhailova4Vladimir N. Bocharov5Sergey V. Krivovichev6Gregory Yu. Ivanyuk7Nanomaterials Research Centre of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, Apatity 184209, RussiaNanomaterials Research Centre of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, Apatity 184209, RussiaLaboratory of geo-inspired technologies and environmental safety of Arctic region of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, Apatity 184209, RussiaDepartment of Crystallography, Institute of Earth Sciences, Saint-Petersburg State University, University Emb. 7/9, St. Petersburg 199034, RussiaNanomaterials Research Centre of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, Apatity 184209, RussiaGeo Environmental Centre “Geomodel”, Saint-Petersburg State University, Ul’yanovskaya Str. 1, St. Petersburg 198504, RussiaNanomaterials Research Centre of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, Apatity 184209, RussiaNanomaterials Research Centre of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, Apatity 184209, RussiaChirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, is a new wöhlerite–related zirconotitano–sorosilicate. It is triclinic, <i>P</i> <inline-formula> <math display="inline"> <semantics> <mrow> <mover> <mn>1</mn> <mo>¯</mo> </mover> </mrow> </semantics> </math> </inline-formula>, <i>a</i> = 7.0477(5), <i>b</i> = 9.8725(5), <i>c</i> = 12.2204(9) Å, <i>α</i> = 77.995(5), <i>β</i> = 82.057(6), <i>γ</i> = 89.988(5)°, <i>V</i> = 823.35(9) Å<sup>3</sup>, <i>Z</i> = 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 (–), <i>α</i> 1.670(2), <i>β</i> 1.690(2), <i>γ</i> 1.705(2) (589 nm), 2<i>V</i><sub>calc</sub> = 80.9°. The calculated and measured densities are 3.41 and 3.07(2) g·cm<sup>−3</sup>, respectively. The empirical formula based on Si = 8 apfu is (Na<sub>9.81</sub>Ca<sub>3.28</sub>K<sub>0.01</sub>)<sub>∑13.10</sub>(Fe<sub>0.72</sub>Mn<sub>0.69</sub>□<sub>0.54</sub>Mg<sub>0.05</sub>)<sub>∑2.00</sub> (Ti<sub>1.81</sub>Nb<sub>0.19</sub>)<sub>∑2.00</sub>(Zr<sub>2.27</sub>Ti<sub>0.63</sub>)<sub>∑2.90</sub>(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>{(OH)<sub>5.94</sub>O<sub>3.09</sub>F<sub>2.97</sub>}<sub>∑12.00</sub>. 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 Si<sub>2</sub>O<sub>7</sub> 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.https://www.mdpi.com/2075-163X/9/4/219chirvinskyitenew mineraltitanozircono–sorosilicatemodular crystal structurealbititeKhibiny massif

Chirvinskyite, (Na,Ca)<sub>13</sub>(Fe,Mn,□)<sub>2</sub>(Ti,Nb)<sub>2</sub>(Zr,Ti)<sub>3</sub>-(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>(OH,O,F)<sub>12</sub>, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia)

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