Moskvinite-(Y) (original) (raw)

A valid IMA mineral species

About Moskvinite-(Y)Hide

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Y may be replaced by minor REE.

Crystal System:

Orthorhombic

Name:

Named by A.A. Agakhanov, L.A. Pautov, E.V. Sokolova, F.C. Hawthorne, and V.Y. Karpenko in 2003 in honor of Alexander Veniaminovic Moskvin (Александр Вениаминович Москвин) (1897 – 2 March 1974, Leningrad, Russia), Russian geologist and member of the Tajik-Pamirs expedition (1932–1936). He was first to identify the Dara-i-Pioz alkaline massif.

This page provides mineralogical data about Moskvinite-(Y).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:27552:1

e9674906-ef2e-4e78-997b-058211d46d79

IMA Classification of Moskvinite-(Y)Hide

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Type description reference:

Agakhanov, A. A., Pautov, L. A., Sokolova, E. V., Hawthorne, F. C., Karpenko, V. Y. (2003) Moskvinite-(Y), Na2K(Y, REE)[Si6O15], a new mineral. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 132 (6) 15-21

Classification of Moskvinite-(Y)Hide

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9.CD.05

9 : SILICATES (Germanates)
C : Cyclosilicates
D : [Si3O9]6- 3-membered double rings

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Pronunciation of Moskvinite-(Y)Hide

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Pronunciation:

Physical Properties of Moskvinite-(Y)Hide

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Hardness:

VHN100=523 - Vickers

Fracture:

Irregular/Uneven

Density:

2.91(1) g/cm3 (Measured) 2.92 g/cm3 (Calculated)

Optical Data of Moskvinite-(Y)Hide

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RI values:

_n_α = 1.555 _n_β = 1.558 _n_γ = 1.566

2V:

Measured: 64° , Calculated: 63°

δ = 0.011

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Chemistry of Moskvinite-(Y)Hide

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Mindat Formula:

Na2KYSi6O15

Y may be replaced by minor REE.

Crystallography of Moskvinite-(Y)Hide

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Crystal System:

Orthorhombic

Class (H-M):

m m m _(_2/_m_2/_m_2/m ) - Dipyramidal

Cell Parameters:

a = 10.623(2) Å, b = 14.970(2) Å, c = 8.552(2) Å

Ratio:

a:b:c = 0.71 : 1 : 0.571

Morphology:

Isometric grains to 2 mm

Comment:

Space Group: Ibmm.

Crystal StructureHide

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ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0005835	Moskvinite-(Y)	Sokolova E V, Hawthorne F C, Agakhanov A A, Pautov L A (2003) The crystal structure of moskvinite-(Y), Na2K(Y,REE)[Si6O15], a new silicate mineral with [Si6O15] three-membered double-rings from the Dara-I-Pioz Moraine, Tien-Shan mountains, Tajikistan The Canadian Mineralogist 41 513-520		2003	Dara-I-Pioz Moraine, Tien-Shan mountains, Tajikistan	0	293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

[d in .ANG.,(I/IO)(hkl)]

Geological EnvironmentHide

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Type Occurrence of Moskvinite-(Y)Hide

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Place of Conservation of Type Material:

A.E. Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia

Geological Setting of Type Material:

Occurs in a coarse-grained reedmergnerite pegmatite

Associated Minerals at Type Locality:

Reference:

Agakhanov, A.A., Pautov, L.A., Sokolova, E.V., Hawthorne, F.C., and Karpenko, V.Y. (2003) Moskvinite-(Y), Na2K(Y,REE)[Si6O15], a new mineral. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 132: 15-21. (in Russian)

Synonyms of Moskvinite-(Y)Hide

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Other Language Names for Moskvinite-(Y)Hide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Other InformationHide

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IR Spectrum:

Band frequencies of the IR spectrum are: 413, 486, 504, 563, 629, 682, 765, 817, 937, 976, 1015, 1041, 1055, 1070, 1109 cm-1.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Moskvinite-(Y)Hide

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References for Moskvinite-(Y)Hide

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Reference List:

Agakhanov, A. A., Pautov, L. A., Sokolova, E. V., Hawthorne, F. C., Karpenko, V. Y. (2003) Moskvinite-(Y), Na2K(Y, REE)[Si6O15], a new mineral. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 132 (6) 15-21

Sokolova, E., Hawthorne, F. C., Agakhanov, A. A., Pautov, L. A. (2003) The crystal structure of moskvinite-(Y), Na2K(Y,REE) [Si6O15], a new silicate mineral with [Si6O15] three-membered double rings from the Dara-i-Pioz moraine, Tien-Shan Mountains, Tajikistan. The Canadian Mineralogist, 41 (2) 513-520 doi:10.2113/gscanmin.41.2.513

Localities for Moskvinite-(Y)Hide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Greenland
Kujalleq Ilímaussaq complex Kuannersuit Plateau (Kvanefjeld) ⓘ Kvanefjeld deposit	Friis (2016)
Tajikistan (TL)
Districts of Republican Subordination ⓘ Dara-i-Pioz Massif (TL)	Agakhanov et al. (2003) +1 other reference