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Vlasovite

Big Photo

Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada
© 2001 John H. Betts

Show Vlasovite Photos (10)
Formula:
Na
 
2
ZrSi
 
4
O
 
11
System:MonoclinicColour:Colorless, honey-brown
Hardness:6
Name:Named after Kuzma Alekseevich Vlasov (1905-1964), mineralogist and geochemist, founder of the Institute of Mineralogy (Moscow).
This page provides mineralogical data about Vlasovite.

Classification of Vlasovite

IMA status:Approved 1967
Strunz 8th edition ID:8/F.34-20
Nickel-Strunz 10th (pending) edition ID:9.DM.25

9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
Dana 8th edition ID:66.2.2.1

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
2 : Amphiboles - Ca subgroup
Hey's CIM Ref.:14.10.5

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
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Type Occurrence of Vlasovite

Type Locality:Vavnbed Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Physical Properties of Vlasovite

Lustre:Greasy, Pearly
Diaphaneity (Transparency):Translucent
Colour:Colorless, honey-brown
Hardness (Mohs):6

Crystallography of Vlasovite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b {B1 1 2/b} {C2/c} {C1 2/c 1}
Cell Parameters:a = 11.0390(5) Å, b = 10.0980(4) Å, c = 8.5677(4) Å
β = 100.313(1)°
Ratio:a:b:c = 1.093 : 1 : 0.848
Unit Cell Volume:V 939.6 ų
Z:4

Optical Data of Vlasovite

Type:Biaxial (-)
RI values: nα = 1.607 nβ = 1.623 nγ = 1.628
Maximum Birefringence:δ = 0.021

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v

Chemical Properties of Vlasovite

Formula:
Na
 
2
ZrSi
 
4
O
 
11
Essential elements:Na, O, Si, Zr
All elements listed in formula:Na, O, Si, Zr

Relationship of Vlasovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DM.05Stokesite
CaSn[Si
 
3
O
 
9
] · 2H
 
2
O
9.DM.10Calciohilairite
CaZr[SiO
 
3
]
 
3
·3H
 
2
O
9.DM.10Hilairite
Na
 
2
Zr[SiO
 
3
]
 
3
·3H
 
2
O
9.DM.10Komkovite
BaZr[Si
 
3
O
 
9
]·3H
 
2
O
9.DM.10Sazykinaite-(Y)
Na
 
5
YZr[SiO
 
3
]
 
6
 · 6H
 
2
O
9.DM.10Pyatenkoite-(Y)
Na
 
5
YTi[SiO
 
3
]
 
6
 · 6H
 
2
O
9.DM.15Gaidonnayite
Na
 
2
Zr[Si
 
3
O
 
9
]·2H
 
2
O
9.DM.15Georgechaoite
NaKZr[Si
 
3
O
 
9
]·2H
 
2
O
9.DM.20Chkalovite
Na
 
2
BeSi
 
2
O
 
6
9.DM.30Revdite
Na
 
16
Si
 
16
O
 
27
(OH)
 
26
·28H
 
2
O
9.DM.35Scheuchzerite
Na(Mn,Mg,Zn)
 
9
[VSi
 
9
O
 
28
(OH)](OH)
 
3
9.DM.40Terskite
Na
 
4
ZrSi
 
6
O
 
16
·2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.10.1Zircon
Zr[SiO
 
4
]
14.10.2Hafnon
(Hf,Zr)[SiO
 
4
]
14.10.3Zektzerite
LiNa(Zr,Ti,Hf)Si
 
6
O
 
15
14.10.4Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
14.10.6Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
14.10.7Gaidonnayite
Na
 
2
Zr[Si
 
3
O
 
9
]·2H
 
2
O
14.10.8Terskite
Na
 
4
ZrSi
 
6
O
 
16
·2H
 
2
O
14.10.9Elpidite
Na
 
2
ZrSi
 
6
O
 
15
·3H
 
2
O
14.10.10Hilairite
Na
 
2
Zr[SiO
 
3
]
 
3
·3H
 
2
O
14.10.11Petarasite
Na
 
5
Zr
 
2
[(OH,Cl)|Si
 
6
O
 
18
]·2H
 
2
O
14.10.12Khibinskite
K
 
2
ZrSi
 
2
O
 
7
14.10.13Wadeite
K
 
2
Zr[Si
 
3
O
 
9
]
14.10.14Dalyite
K
 
2
ZrSi
 
6
O
 
15
14.10.15Kostylevite
K
 
2
ZrSi
 
3
O
 
9
·H
 
2
O
14.10.16Umbite
K
 
2
(Zr,Ti)Si
 
3
O
 
9
·H
 
2
O
14.10.17Paraumbite
K
 
3
Zr
 
2
H(Si
 
3
O
 
9
)
 
2
·nH
 
2
O
14.10.18Georgechaoite
NaKZr[Si
 
3
O
 
9
]·2H
 
2
O
14.10.19Gittinsite
CaZr[Si
 
2
O
 
7
]
14.10.20Calciocatapleiite
CaZrSi
 
3
O
 
9
·2H
 
2
O
14.10.21Calciohilairite
CaZr[SiO
 
3
]
 
3
·3H
 
2
O
14.10.22Armstrongite
CaZr[Si
 
6
O
 
15
]·3H
 
2
O
14.10.23Lemoynite
(Na,K)
 
2
CaZr
 
2
Si
 
10
O
 
26
·5H
 
2
O
14.10.24Catapleiite
Na
 
2
Zr[Si
 
3
O
 
9
]·2H
 
2
O
14.10.25Baghdadite
Ca
 
3
(Zr,Ti)[O
 
2
|Si
 
2
O
 
7
]
14.10.26Lovozerite
Na
 
2
Ca(Zr,Ti)[Si
 
6
O
 
12
(OH,O)
 
6
]*H
 
2
O
14.10.27Låvenite
(Na,Ca)
 
2
(Mn
2+
 
,Fe
2+
 
)(Zr,Ti)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
14.10.28Penkvilksite
Na
 
4
Ti
 
2
Si
 
8
O
 
22
·4H
 
2
O
14.10.29Darapiosite
KNa
 
2
Li(Mn,Zn)
 
2
ZrSi
 
12
O
 
30
14.10.30Bazirite
BaZr[Si
 
3
O
 
9
]
14.10.31Komkovite
BaZr[Si
 
3
O
 
9
]·3H
 
2
O
14.10.32Zirsinalite
Na
 
6
(Ca,Mn
2+
 
,Fe
2+
 
)Zr[Si
 
6
O
 
18
]
14.10.33Tranquillityite
(Fe
2+
 
,Ca)
 
8
(Zr,Y)
 
2
Ti
 
3
[O
 
4
|SiO
 
4
]
 
3

Other Names for Vlasovite

Other Languages:
German:Vlasovit
Russian:Власовит
Spanish:Vlasovita

Other Information

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

References for Vlasovite

Reference List:Doklady Akademii Nauk SSSR (1961): 137, 944-946.

American Mineralogist (1961): 46: 1202.

Canadian Mineralogist (1973): 12: 211.

Gobechiya, E. R., I. V. Pekov, D. Yu. Pushcharovski, G. Ferraris, A. Gula, N. V. Zubkova, and N. V. Chukanov (2003), New Data on Vlasovite: Refinement of the Crystal Structure and the Radiation Damage of the Crystal during the X-ray Diffraction Experiment, Crystallography Reports - September 2003: 48(5): 750-754.

Kristallografiya: 19: 252-259.

Soviet Physics – Crystallography: 19: 152-156.

Canadian Mineralogist: 44: 1349-1356 (2006)

Internet Links for Vlasovite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Vlasovite in the Natural History Museum (London) online catalogue
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    Localities for Vlasovite

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 3rd Nov 2009 16:47:38