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Oxy-vanadium-dravite

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Formula:
Na(V)3(V4Mg2)Si6O18(BO3)3(OH)3O
System:
Trigonal
Colour:
Dark green with ...
Hardness:
7
Name:
For its vanadium content and relationship to dravite. First described as vanadium-dravite (IMA No. 1999–050, Retznitsky et al. 2001). Later redefined and renamed as oxy-vanadium-dravite (IMA 11-E), since the mineral belongs to the alkali group, oxysubgroup 3 of the tourmaline supergroup nomenclature.
Not to be confused with vanadio-oxy-dravite.

Related to oxy-dravite and oxy-chromium-dravite by the homovalent substitution V3+ → Al and V3+ → Cr3+ (respectively) at the Y and Z sites.

Note:
"The occurrence of solid-solutions among V3+, Cr3+, and Al have been observed in tourmalines from metamorphic rocks of the Sludyanka complex. Significant chemical variations in V3+, Cr3+, and Al were also observed within zoned crystals from Sludyanka, not belonging to the holotype specimen" (Bosi et al. 2013)


Classification of Oxy-vanadium-dravite

Approved
Notes:
Redefined by the IMA
Approval History:
Approved in 1999 as vanadium-dravite NaMg3V6(Si6O18)(BO3)3(OH)3OH (IMA 1999-050).
Redefined in 2012 by IMA as oxy-vanadium-dravite with end-member formula NaV3(V4Mg2)Si6O18(BO3)3(OH)3O. (IMA 11-E)
9.CK.05

9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions
Dana 7th ed.:
61.3.1.14

Physical Properties of Oxy-vanadium-dravite

Colour:
Dark green with yellow-brown tint to black.
Streak:
Yellowish-brown.
Hardness (Mohs):
7
Density:
3.32 g/cm3 (Calculated)

Chemical Properties of Oxy-vanadium-dravite

Formula:
Na(V)3(V4Mg2)Si6O18(BO3)3(OH)3O
Elements listed in formula:

Crystallography of Oxy-vanadium-dravite

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 16.1908(4) Å, c = 7.4143(2) Å
Ratio:
a:c = 1 : 0.458
Unit Cell Volume:
V 1683.21 ų
Z:
3

Type Occurrence of Oxy-vanadium-dravite

Empirical Formula:
X(Na0.88K0.07□0.05)Y(V3+2.46Mg0.48Ti0.06)Z(V3+3.14Mg1.74Al0.91Cr3+0.21)T(Si5.99Al0.01O18)B(BO3)3V(OH)3 W(O0.78OH0.14F0.08) ·

Relationship of Oxy-vanadium-dravite to other Species

Other Members of Group:
AdachiiteCaFe3Al6(Si5AlO18)(BO3)3(OH)3(OH)
BosiiteNaFe33+(Al4Mg2)(Si6O18)(BO3)3(OH)3O
Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
Chromo-alumino-povondraiteNa(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3O
DarrellhenryiteNa(LiAl2)Al6(BO3)3Si6O18(OH)3O
DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
Fluor-buergeriteNa(Fe33+)Al6(Si6O18)(BO3)3O3F
Fluor-draviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3F
Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Fluor-feruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3F
Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Fluor-schorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3F
Fluor-tsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3F
Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
LucchesiiteCaFe32+ Al6(Si6O18)(BO3)3(OH)3O
Luinaite-(OH)Na(Fe2+)3Al6(Si6O18)(BO3)3(OH)3(OH)
Magnesio-foitite(□,Na)(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
MaruyamaiteK(MgAl2)(Al5Mg)(BO3)3(Si6O18)(OH)3O
OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)
Oxy-chromium-draviteNa(Cr)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O
Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
Oxy-foitite□(Fe2+Al2)Al6(Si6O18)(BO3)3(OH)3O
Oxy-rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3O
Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
Oxy-uviteCaMg3Al6(Si6O18)(BO3)3(OH)3O
PovondraiteNaFe33+(Mg2Fe43+)(Si6O18)(BO3)3(OH)3O
Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
TsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3(OH)
UM2000-64-SiO:BFeHKMgK, Mg, Fe, Si, B, O, H
Unnamed (Pb-dominant Tourmaline)(Pb,Na)(Li,Al)3Al6(Si6O18)(BO3)3(OH)3(F,OH)
Uvite SeriesCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Vanadio-oxy-chromium-draviteNa(V)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O
Vanadio-oxy-draviteNaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O
9.CK.Fluor-schorlNaFe32+Al6(Si6O18)(BO3)3(OH)3F
9.CK.DarrellhenryiteNaLiAl2Al6(BO3)3Si6O18(OH)3O
9.CK.AdachiiteCaFe32+Al6(Si5AlO18)(BO3)3(OH)3(OH)
9.CK.05Fluor-buergeriteNaFe33+Al6(Si6O18)(BO3)3O3F
9.CK.05Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
9.CK.05DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05ElbaiteNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05FeruviteCaFe32+(Al5Mg)(Si6O18)(BO3)3(OH)3OH
9.CK.05Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
9.CK.05OleniteNaAl3Al6(Si6O18)(BO3)3(O3)OH
9.CK.05PovondraiteNaFe33+(Fe43+Mg2)(Si6O18)(BO3)3(OH)3O
9.CK.05SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
9.CK.05Oxy-rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3O
9.CK.05Chromo-alumino-povondraiteNaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O
9.CK.05Fluor-draviteNaMg3Al6(Si6O18)(BO3)3(OH)3F
9.CK.05Fluor-uviteCaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F
9.CK.10Abenakiite-(Ce)Na26Ce6(SiO3)6(PO4)6(CO3)6(SO2)O
9.CK.15ScawtiteCa7(Si3O9)2(CO3) · 2H2O
9.CK.20Steenstrupine-(Ce)Na14Ce6Mn22+Fe23+Zr(PO4)7Si12O36(OH)2 · 3H2O
9.CK.20Thorosteenstrupine(Ca,Th,Mn)3Si4O11F · 6H2O
61.3.1.1Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.2Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.3Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.4LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
61.3.1.5Uvite SeriesCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
61.3.1.5Fluor-uviteCaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F
61.3.1.6FeruviteCaFe32+(Al5Mg)(Si6O18)(BO3)3(OH)3OH
61.3.1.7Fluor-buergeriteNaFe33+Al6(Si6O18)(BO3)3O3F
61.3.1.8PovondraiteNaFe33+(Fe43+Mg2)(Si6O18)(BO3)3(OH)3O
61.3.1.9OleniteNaAl3Al6(Si6O18)(BO3)3(O3)OH
61.3.1.10ElbaiteNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.11DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.12SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.13Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)

Other Names for Oxy-vanadium-dravite

Name in Other Languages:

Other Information

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 Oxy-vanadium-dravite

Reference List:
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Reznitsky, E.Z.,Sklyarov, E.V., Ushchapovskaya, Z.F., Nartova, N.V., Kashaev, A.A., Karmanov, N.S. Kanakin, S.V., Smolin, A.S. & Nekrasova, E.A. (2011): Vanadiumdravite NaMg3V6[Si6O18][BO3]3(OH)4, a new mineral of the tourmaline group. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (2001): 130(2): 59-72.( in russian)

Henry, D., Novák, M., Hawthorne, F.C., Ertl, A., Dutrow, B.L., Uher, P. & Pezzotta, F. (2011): Nomenclature of the tourmaline supergroup minerals. American Mineralogist, 96, 895-913.

CNMNC Newsletter No. 13, June 2012, page 816; Mineralogical Magazine, 76, 807-817

Bosi, F., Reznitskii, L.Z., Sklyarov, E.V. (2013): Oxy-vanadium-dravite, NaV3(V4Mg2)(Si6O18)(BO3)3(OH)3O: Crystal structure and redefinition of the “vanadium-dravite” tourmaline. American Mineralogist, 98, 501-505.

Internet Links for Oxy-vanadium-dravite

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https://www.mindat.org/min-10380.html
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Localities for Oxy-vanadium-dravite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Russia (TL)
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Lake Baikal area
ZVMO (2001) 130/2, 59-72; Bosi, F., Reznitskii, L.Z., Sklyarov, E.V. (2013): Oxy-vanadium-dravite, NaV3(V4Mg2)(Si6O18)(BO3)3(OH)3O: Crystal structure and redefinition of the “vanadium-dravite” tourmaline. American Mineralogist, 98, 501–505
Mineral and/or Locality  
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