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Vanadium-dravite

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Big Photo

Srednyaya Padma U-V deposit, Zaonezhie peninsula, Lake Onega, Karelia Republic, Northern Region, Russia
© 2008, JGW




Formula:
Na(Mg,Fe
2+
 
)
 
3
(V
3+
 
,Cr
3+
 
,Al)
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
System:TrigonalColour:Dark green with ...
Lustre:Hardness:7
Member of:Tourmaline Group
Name:For its vanadium content and relationship to dravite.


Tourmaline Group.

Classification of Vanadium-dravite

IMA status:Approved 1999
Strunz 8th edition ID:8/E.19-40
Nickel-Strunz 10th (pending) edition ID:9.CK.05

9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions
Dana 7th edition ID:61.3.1.14
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Type Occurrence of Vanadium-dravite

Type Locality:Slyudyanka (Sludyanka), Lake Baikal area, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia

Physical Properties of Vanadium-dravite

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

Crystallography of Vanadium-dravite

Crystal System:Trigonal
Class (H-M):3m - Ditrigonal Pyramidal
Space Group:R3m
Cell Parameters:a = 16.12Å, c = 7.39Å
Ratio:a:c = 1 : 0.458
Unit Cell Volume:V 1663.05 ų
Z:3

Chemical Properties of Vanadium-dravite

Formula:
Na(Mg,Fe
2+
 
)
 
3
(V
3+
 
,Cr
3+
 
,Al)
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Idealised Formula:
NaMg
 
3
V
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Essential elements:B, H, Mg, Na, O, Si, V
All elements listed in formula:Al, B, Cr, Fe, H, Mg, Na, O, Si, V

Relationship of Vanadium-dravite to other Species

Member of:Tourmaline Group
Other Members of Group:

- +
Buergerite
Na(Fe
3+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
F
Chromium-dravite
Na(Mg
 
3
)Cr
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Chromo-alumino-povondraite
Na(Cr
 
3
)Mg
 
2
Al
 
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Fluor-dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Fluor-elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Fluor-feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Fluor-liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)F
Fluor-schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
Foitite
(□,Na)(Fe
2+
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
OH
Liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Luinaite-(OH)
Na(Fe
2+
 
)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Magnesiofoitite
(□,Na)(Mg
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Olenite
Na(Al
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
(OH)
Oxy-dravite
Na(MgAl
 
2
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Oxy-rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Oxy-schorl
Na(Fe
2+
 
,Al)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(O,OH,F)
Povondraite
Na(Fe
3+
3
)Mg
 
2
Fe
3+
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
Rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Tsilaisite
Na(Mn
2+
 
)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Unnamed (Pb-dominant tourmaline)
(Pb,Na)(Li,Al)
 
3
Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(F,OH)
Uvite
Ca(Mg
 
3
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
Related Minerals - Nickel-Strunz Grouping):

- +
9.CK.Fluor-schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
9.CK.05Buergerite
Na(Fe
3+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
F
9.CK.05Chromium-dravite
Na(Mg
 
3
)Cr
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Foitite
(□,Na)(Fe
2+
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
OH
9.CK.05Liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Olenite
Na(Al
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
(OH)
9.CK.05Povondraite
Na(Fe
3+
3
)Mg
 
2
Fe
3+
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Uvite
Ca(Mg
 
3
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Magnesiofoitite
(□,Na)(Mg
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
9.CK.05Oxy-dravite
Na(MgAl
 
2
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Oxy-rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Chromo-alumino-povondraite
Na(Cr
 
3
)Mg
 
2
Al
 
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
9.CK.05Fluor-dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
F
9.CK.10Abenakiite-(Ce)
Na
 
26
Ce
 
6
(Si
 
6
O
 
18
)(PO
 
4
)
 
6
(CO
 
3
)
 
6
(SO
 
2
)O
9.CK.15Scawtite
Ca
 
7
(Si
 
3
O
 
9
)
 
2
CO
 
3
 · 2H
 
2
O
9.CK.20Steenstrupine-(Ce)
Na
 
14
Mn
2+
2
(Fe
3+
 
,Mn
3+
 
)
 
2
Ce
 
6
(Zr,Th)(Si
 
6
O
 
18
)
 
2
(PO
 
4
)
 
6
(HPO
 
4
)(OH)
 
2
 · 2H
 
2
O
9.CK.20Thorosteenstrupine
CaMnThSi
 
4
O
 
11
(OH)F · 6H
 
2
O
Related Minerals - Dana Grouping):

- +
61.3.1.1Foitite
(□,Na)(Fe
2+
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
OH
61.3.1.2Magnesiofoitite
(□,Na)(Mg
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.3Rossmanite
☐(LiAl
 
2
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.4Liddicoatite
Ca(Li
 
2
Al)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.5Uvite
Ca(Mg
 
3
)MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.6Feruvite
Ca(Fe
2+
 
)
 
3
MgAl
 
5
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.7Buergerite
Na(Fe
3+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
F
61.3.1.8Povondraite
Na(Fe
3+
3
)Mg
 
2
Fe
3+
4
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
O
61.3.1.9Olenite
Na(Al
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
O
 
3
(OH)
61.3.1.10Elbaite
Na(Li
 
1.5
Al
 
1.5
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.11Dravite
Na(Mg
 
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.12Schorl
Na(Fe
2+
3
)Al
 
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)
61.3.1.13Chromium-dravite
Na(Mg
 
3
)Cr
3+
6
(Si
 
6
O
 
18
)(BO
 
3
)
 
3
(OH)
 
3
(OH)

Other Names for Vanadium-dravite

Synonyms:
IMA1999-050Vanadiumdravite
Other Languages:
German:Vanadiumdravit
Simplified Chinese:钒镁电气石
Spanish:Vanadiumdravita
Traditional Chinese:釩鎂電氣石

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 Vanadium-dravite

Reference List:

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

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (2001): 130(2): 59-72.

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

Internet Links for Vanadium-dravite

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    • Localities for Vanadium-dravite

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    (TL) indicates type locality. ? 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
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Lake Baikal area
    		ZVMO (2001) 130/2, 59-72
    Mineral and/or Locality
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