Vlasovite (original) (raw)
A valid IMA mineral species
About VlasoviteHide
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Colour:
Colorless, honey-brown
Lustre:
Vitreous, Greasy, Pearly
Specific Gravity:
2.92 - 2.97
Crystal System:
Monoclinic
Name:
Named in honor of Kuzma Alekseevich Vlasov (Кузьма Алексеевич Власов) (1 (14) November 1905, Nikolaevka, Tambov Province, Russian Empire - 29 September 1964, Moscow, USSR), mineralogist and geochemist, founder of the Institute of Mineralogy (Moscow).
Seems to be related to khurayyimite; the two are suggested to belong to the same group.
The two minerals can be described using geometrical repeat unit of cTr = 2T4 3T4 and topological repeat unit of cVr = 2V2 3V2.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4196:2
e7e0931d-1f7b-4e4b-b725-f19b5b7d1e0e
IMA Classification of VlasoviteHide
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Type description reference:
Classification of VlasoviteHide
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9.DM.25
9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
66.2.2.1
66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
2 : Amphiboles - Ca subgroup
14.10.5
14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
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.
| Symbol | Source | Reference |
|---|---|---|
| Vsv | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of VlasoviteHide
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Comment:
highly vitreous to pearly on cleavage surfaces.
Colour:
Colorless, honey-brown
Hardness:
VHN100=770 - Vickers
Cleavage:
Distinct/Good
{010}, good; {h0l}, poor.
Fracture:
Irregular/Uneven, Conchoidal
Density:
2.92 - 2.97 g/cm3 (Measured) 3.07 g/cm3 (Calculated)
Optical Data of VlasoviteHide
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RI values:
_n_α = 1.607(3) _n_β = 1.623(3) _n_γ = 1.628(3)
δ = 0.021
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of VlasoviteHide
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Mindat Formula:
Na2ZrSi4O11
Crystallography of VlasoviteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
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
Twinning:
Twin plane {010}, uncommon.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0006128 | Vlasovite | Sokolova E, Hawthorne F C, Ball N A, Mitchell R H, Della Ventura G (2006) Vlasovite, Na2Zr(Si4O11), from the Kipawa alkaline complex, Quebec, Canada: Crystal-structure refinement and infrared spectroscopy The Canadian Mineralogist 44 1349-1356 |  |
2006 | Kipawa alkaline complex, Quebec, Canada | 0 | 293 |
| 0014182 | Vlasovite | Voronkov A A, Zhdanova T A, Pyatenko Y A (1974) Refinement of the structure of vlasovite Na2ZrSi4O11 and some characteristics of the composition and structure of the zirconosilicates Kristallografiya 19 252-259 | 1974 | 0 | 293 | ||
| 0014445 | Vlasovite | Fleet S G, Cann J R (1967) Vlasovite: a second occurrence and a triclinic to monoclinic inversion Mineralogical Magazine 36 233-241 | |
1967 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.053 Å | (100) |
| 3.669 Å | (75) |
| 3.882 Å | (45) |
| 3.237 Å | (40) |
| 3.363 Å | (35) |
| 3.548 Å | (25) |
| 1.945 Å | (20) |
Geological EnvironmentHide
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Type Occurrence of VlasoviteHide
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General Appearance of Type Material:
Place of Conservation of Type Material:
Mining Institute, St. Petersburg, 1037/1; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 83207, vis5052; National School of Mines, Paris, France.
Reference:
Tikhonenkova, R.P., Kazakova, M.E. (1961) Vlasovite - a new zirconium silicate from the Lovozero Massif. Doklady Akademii Nauk SSSR: 137: 944-946.
Other Language Names for VlasoviteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of VlasoviteHide
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Altered portions fluoresce brownish yellow under SW UV
Other InformationHide
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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 VlasoviteHide
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References for VlasoviteHide
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Reference List:
Gobechiya, E. R., Pekov, I. V., Pushcharovskii, D. Yu., Ferraris, G., Gula, A., Zubkova, N. V., Chukanov, N. V. (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, 48 (5) 750-754 doi:10.1134/1.1612595
Sokolova, E., Hawthorne, F. C., Ball, N. A., Mitchell, R. H., Della Ventura, G. (2006) Vlasovite, Na2Zr(Si4O11), from the Kipawa alkaline complex, Quebec, Canada: crystal-structure refinement and infrared spectroscopy. The Canadian Mineralogist, 44 (6) 1349-1356 doi:10.2113/gscanmin.44.6.1349
Krüger, Biljana, Galuskina, Irina O., Galuskin, Evgeny V., Vapnik, Yevgeny, Murashko, Mikhail N. (2023) Khurayyimite Ca7Zn4(Si2O7)2(OH)10·4H2O: a mineral with unusual loop-branched sechser single chains. Mineralogy and Petrology, 117 (2) 191-200 doi:10.1007/s00710-022-00804-z
Localities for VlasoviteHide
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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.
| Antarctica | |
|---|---|
| Eastern Antarctica Queen Maud Land ⓘ Straumsvola complex | Harris et al. (1993) |
| Australia | |
| New South Wales Gordon Co. ⓘ Toongi deposit | Anenburg et al. (2022) |
| Canada | |
| Northwest Territories North Slave Region Blachford Lake alkaline complex Thor Lake syenite complex ⓘ Nechalacho deposit | MÖLLER (2016) |
| Québec Abitibi-Témiscamingue Témiscamingue RCM Les Lacs-du-Témiscamingue ⓘ Kipawa alkaline complex |
Currie et al. (1996) |
| ⓘ Strange Lake complex (Lac Brisson complex) | Miller (1990) +5 other references |
| Czech Republic | |
| Liberec Region Česká Lípa District Mařenice ⓘ Luž phonolite | Krmíčková et al. (2022) |
| India | |
| Rajasthan Jodhpur Division Barmer District Malani Igneous Province ⓘ Siwana granite | Mondal et al. (2021) |
| Portugal | |
| Azores São Miguel ⓘ Água de Pau Volcano | Samples collected by Luigi Chiappino ... +1 other reference |
| Russia | |
| Buryatia Mama River Basin Maigunda River ⓘ Burpala alkaline massif | A.M. Portnov data +1 other reference |
| Murmansk Oblast Khibiny Massif ⓘ Kukisvumchorr Mt | |
| Lovozersky District ⓘ Vavnbed Mountain (TL) | Pekov (1998) |
| Saint Helena， Ascension and Tristan da Cunha | |
| ⓘ Ascension Island | Bell +20 other references |
| ⓘ Green Mountain | rruff.geo.arizona.edu (n.d.) |