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Vlodavetsite

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About VlodavetsiteHide

Formula:
AlCa2(SO4)2F2Cl · 4H2O
Colour:
Colourless
Lustre:
Vitreous
Crystal System:
Tetragonal
Name:
Named after V. I. Vlodavets (1893-1993), Russian volcanologist, who founded the Kamchatka volcanological station.
This page provides mineralogical data about Vlodavetsite.


Classification of VlodavetsiteHide

Approved
Approval Year:
1993
7.DF.40

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations

Physical Properties of VlodavetsiteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless

Optical Data of VlodavetsiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.509 nε = 1.526
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of VlodavetsiteHide

Formula:
AlCa2(SO4)2F2Cl · 4H2O
IMA Formula:
Ca2Al(SO4)2F2Cl · 4H2O

Crystallography of VlodavetsiteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
I4/m
Cell Parameters:
a = 6.870(1) Å, c = 13.342(2) Å
Ratio:
a:c = 1 : 1.942
Unit Cell V:
629.70 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of VlodavetsiteHide

Synonyms of VlodavetsiteHide

Other Language Names for VlodavetsiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Thermessaite1 photo of Vlodavetsite associated with Thermessaite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DF.Aldridgeite(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O Mon. 2/m : B2/b
7.DF.AlcaparrosaiteK3Ti4+Fe3+(SO4)4O(H2O)2Mon. 2/m : B2/b
7.DF.05UklonskoviteNaMg(SO4)F · 2H2OMon.
7.DF.10KainiteKMg(SO4)Cl · 3H2OMon. 2/m : B2/m
7.DF.15NatrochalciteNaCu2(SO4)2(OH) · 2H2OMon. 2/m : B2/m
7.DF.20MetasideronatriteNa2Fe(SO4)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
7.DF.20SideronatriteNa2Fe(SO4)2(OH) · 3H2OOrth. 2 2 2 : P21 21 21
7.DF.25DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
7.DF.25FleischeritePb3Ge(SO4)2(OH)6 · 3H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.DF.25SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.DF.25MallestigitePb3Sb5+(SO4)(AsO4)(OH)6 · 3H2OHex. 6 : P63
7.DF.30Slavíkite(H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2OTrig. 3 : R3
7.DF.35MetavoltineNa6K2FeFe6(SO4)12O2 · 18H2OTrig.
7.DF.40LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O Tet. 4/m : I4/m
7.DF.45PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2OMon. 2/m : B2/b
7.DF.50GordaiteNaZn4(SO4)(OH)6Cl · 6H2OTrig. 3 : P3
7.DF.55Clairite(NH4)2Fe3(SO4)4(OH)3 · 3H2OTric.
7.DF.60ArzruniteCu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)Orth.
7.DF.65ElyitePb4Cu(SO4)O2(OH)4 · H2OMon. 2/m
7.DF.70YecoraiteFe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
7.DF.75RiomarinaiteBi(SO4)(OH) · H2OMon. 2/m
7.DF.80DukeiteBi3+24Cr6+8O57(OH)6 · 3H2OTrig. 3m : P3 1c
7.DF.85XocolatliteCa2Mn4+2(Te6+O6)2 · H2OMon. 2/m : P2/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 VlodavetsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vergasova, L.P., S.K. Filatov, G.L. Starova, G.L. Matusevich, and T.M. Filasova (1995): Vlodavetsite AlCa2(SO4)2F2Cl•4H2O – a new mineral from volcanic exhalations. Doklady Akademii Nauk SSSR, 343, 358–360 (in Russian).
Mineralogical Record: 28: 404-405.
Starova, G.L., S.K. Filatov, G.L. Matusevich, and V.S. Fundamensky (1995): The crystal structure of vlodavetsite, AlCa2(SO4)2F2Cl•4H2O. Mineralogical Magazine, 59, 159–162.
Volcanology and Seismology: 17: 649-660.

Internet Links for VlodavetsiteHide

Localities for VlodavetsiteHide

ⓘ - 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.
Italy
 
  • Sicily
    • Messina Province
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Vulcano Island
Campostrini, I., Demartin, F. & Gramaccioli, C.M. (2010): Vulcano: ein außergewöhnlicher Fundpunkt von neuen und seltenen Mineralien. Mineralien-Welt, 21 (3), 40-57 (in German).
Russia
 
  • Kamchatka Oblast
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
Vergasova L P, Filatov S K, Starova G L, Matusevich Z L, Filosofova T M (1996) Vlodavetsite, AlCa2(SO4)2F2Cl·4H2O, a new mineral from volcanic exhalations, Transactions (Doklady) of the USSR Academy of Sciences. Earth science sections, 343, 173-176 abstract Am Min 81:768
Mineral and/or Locality  
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