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Usovite

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About UsoviteHide

08159430014946450605952.jpg
Mikhail A. Usov
Formula:
Ba2CaMgAl2F14
Colour:
Brown to dark brown
Lustre:
Vitreous, Greasy
Hardness:
Crystal System:
Monoclinic
Name:
Named by A.D. Nozhkin, V.A. Gavrilenko, and V.A. Moleva in 1967 in honor of Mikhail Antonovich Usov (20 February 1883, Kainsk (now Kuybyshev), Tomsk Governorate, Russia - 26 July 1939, Belokurikha, Altai Krai, Russia), Director, All-Union Scientific Research Institute of Geology, Russia.

Classification of UsoviteHide

Approved
Approval Year:
1966
First Published:
1967
3.CB.35

3 : HALIDES
C : Complex halides
B : Neso-aluminofluorides
11.6.14.1

11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
8.4.17

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg

Physical Properties of UsoviteHide

Vitreous, Greasy
Transparency:
Translucent
Colour:
Brown to dark brown
Streak:
White
Hardness:
3½ on Mohs scale

Optical Data of UsoviteHide

Type:
Biaxial (+)
RI values:
nα = 1.441 nβ = 1.442 nγ = 1.444
2V:
Measured: 70° , Calculated: 72°
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
dispersion not observed

Chemical Properties of UsoviteHide

Formula:
Ba2CaMgAl2F14

Crystallography of UsoviteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 13.565(1) Å, b = 5.200(4) Å, c = 14.557(10) Å
β = 91.35°
Ratio:
a:b:c = 2.609 : 1 : 2.799
Unit Cell V:
1,026.54 ų (Calculated from Unit Cell)
Z:
4

Type Occurrence of UsoviteHide

Synonyms of UsoviteHide

Other Language Names for UsoviteHide

German:Usovit
Spanish:Usovita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Usovite associated with FluoriteCaF2
1 photo of Usovite associated with Limonite(Fe,O,OH,H2O)

Related Minerals - Nickel-Strunz GroupingHide

3.CB.05CryolithioniteNa3Li3[AlF6]2Iso. m3m (4/m 3 2/m) : Ia3d
3.CB.15CryoliteNa2NaAlF6Mon. 2/m
3.CB.15ElpasoliteK2NaAlF6Iso. m3 (2/m 3) : Pa3
3.CB.15SimmonsiteNa2LiAlF6Mon.
3.CB.20ColquiriiteCaLi[AlF6]Trig.
3.CB.25WeberiteNa2Mg[AlF6]FOrth. mmm (2/m 2/m 2/m) : Immm
3.CB.30KarasugiteSrCa[Al(F,OH)7]Mon.
3.CB.40PachnoliteNaCa[AlF6] · H2OMon. 2/m
3.CB.40ThomsenoliteNaCa[AlF6] · H2OMon. 2/m : P21/b
3.CB.45CarlhintzeiteCa2[AlF6]F · H2OTric.
3.CB.50YaroslaviteCa3Al2F10(OH)2 · H2OOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.4.1SellaiteMgF2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
8.4.2NeighboriteNaMgF3Orth. mmm (2/m 2/m 2/m)
8.4.3BischofiteMgCl2 · 6H2OMon. 2/m : B2/m
8.4.4KorshunovskiteMg2Cl(OH)3 · 4H2OTric.
8.4.5CarnalliteKMgCl3 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
8.4.6TachyhydriteCaMg2Cl6 · 12H2OTrig.
8.4.7FluoriteCaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.8SinjariteCaCl2 · 2H2OTet.
8.4.9AntarcticiteCaCl2 · 6H2OTrig. 3 2 : P3 2 1
8.4.10ChlorocalciteKCaCl3Orth. mmm (2/m 2/m 2/m) : Pnma
8.4.11RorisiteCaFClTet.
8.4.12JarliteNa(Sr,Na)7MgAl6F32(OH,H2O)2Mon. 2/m
8.4.13CalcjarliteNa(Ca,Sr)3Al3(OH)2F14Mon.
8.4.14TikhonenkoviteSr[AlF4(OH)(H2O)]Mon. 2/m : P21/b
8.4.15AcuminiteSr[AlF4(OH)(H2O)]Mon. 2/m : B2/b
8.4.16FrankdicksoniteBaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.18BøgvaditeNa2SrBa2Al4F20Mon. 2/m

Other InformationHide

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

References for UsoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nozhkin, A.D., Gavrilenko, V.A., Moleva, V.A. (1967) Usovite, a new barium fluoaluminate. Zapiski Vsesoyuznogo (Vserossiyskogo) Mineralogicheskogo Obshchestva: 96: 63-66. (in Russian)
Fleischer, M. (1967) New mineral names. American Mineralogist: 52: 1579-1589.
Fleischer, M., Chao, G.Y., Cabri, L.J. (1975) New mineral names. American Mineralogist: 60: 736-739.
Povarennykh, A.S., Egorova, L.M., Litvin, A.L., Nozhkin, A.D. (1974) The chemical composition and unit cell of usovite. Dopovidi Akademii Nauk Ukrainskoi RSR, Seriya B: 36: 891-893. (in Ukranian with English abstract)
Litvin, A.L., Petrunina, A.A., Ostapenko, S.S. (1980) Crystal structure of usovite. Dopovidi Akademii Nauk Ukrainskoi RSR, Seriya B, Geologichni Khimichni Ta Biologichni Nauki: 3: 47-80. (in Ukranian with English abstract)

Internet Links for UsoviteHide

Localities for UsoviteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Germany
 
  • Baden-Württemberg
    • Freiburg
      • Ortenaukreis
        • Oberwolfach
KOLITSCH, U. (1997): Ianthinit und weitere Neufunde aus der Grube Clara im mittleren Schwarzwald. - Erzgräber 11 (2), 76-88; WALENTA, K. (1999): Neue Mineralfunde von der Grube Clara. 8. Folge, 1. Teil. Lapis 24 (11), 34-37; Schimak, F. (2014): Usovit und seltene Vanadium-Mineralien aus der Grube Clara. Lapis, 39 (4), 32-33.
Russia (TL)
 
  • Krasnoyarsk Krai
    • Enisei Range (Yenisei Ridge; Enisei Ridge)
      • Parvaya Noiba River
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Zabaykalsky Krai
    • Chitinskaya Oblast
Starikova, Sharygin, V.V. (2015): Ba-dominant fluoroaluminates from the Katugin rare-metal deposit (Transbaikalia, Russia): chemical and Raman data. XXXII International Conference "Alkaline Magmatism of the Earth and Related Strategic Metal Deposits", August 7-14, Apatity, Kola, Russia
 
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