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Vanadio-oxy-dravite

Collectors Summary

Cleavages meist unvollkommen (1120),(1011),
Crystal System trigonal, R3m

Chemism

Chemical formula

NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O

Additional chem. information

Turmalin-Supergruppe

Chemical composition

Aluminium, Magnesium, Natrium, Silicium, Bor, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 1032.305024 u; Number of atoms in the formula: 53

Info

Empirical formula:

NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.29

3

5.66

1.0079470

3.0238410
Boron

B

3.14

3

5.66

10.8117000

32.4351000
Oxygen

O

48.05

31

58.49

15.9994300

495.9823300
Sodium

Na

2.23

1

1.89

22.9897702

22.9897702
Magnesium

Mg

4.71

2

3.77

24.3050600

48.6101200
Aluminium

Al

10.45

4

7.55

26.9815382

107.9261528
Silicon

Si

16.32

6

11.32

28.0855300

168.5131800
Vanadium

V

14.80

3

5.66

50.9415100

152.8245300

Strunz 9th edition incl. updates

9.CK.05

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
K: ~[Si6O18]12- sechser-Einfachringe, mit inselartig, komplexe [Anionen]
05:

Lapis Classification

VIII/E.19-031

VIII: SILIKATE
E: Ringsilikate
19: Sechserringe [Si6O18] 12-; Turmalin-Gruppe

Classification by Hölzel

9.CE.115

9: SILICATES
C: Cyclosilicates
E: Tourmaline-Group
1: Alkali-Subgroup 1 and 2 - Dravites and Elbaites

IMA status

anerkannt - Neue Mineralien Feb. 2013; CNMNC Newsletter No. 15

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Tourmaline supergroup  ⇒ Alkali-Tourmaline group  ⇒ Tourmaline Alkali-subgroup 1

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

160

Space Group

R3m

Cell parameters a (Å)

16.0273

Cell parameters b (Å)

-

Cell parameters c (Å)

7.2833

Cell parameters a/b or c/a

0.454

Cell parameters c/b

-

Z

3

Volume (ų)

1620.241

Crystal structure

Struktur bestimmt

X-Ray Powder Diffraction

6.447(37), 4.261(52), 4.004(66), 3.522(47), 2.993(67), 2.596(100), 2.057(43), 1.934(28)
XRD chart Vanadio-oxy-dravite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.174 ( ρ calc. Mineralienatlas )

Cleavages

meist unvollkommen (1120),(1011),

(Co-)Type locality

(Co-)Type locality

Russland/Sibirien, Föderationskreis/Irkutsk (Irkutskaja), Oblast/Baikalsee/Sljudjanka (Sludyanka; Slyudyanka)/Pokhabikha-Tal/Pereval Marmorsteinbruch (Grube Kaber)

Type material

Museum of Mineralogy, Earth Sciences Department, Sapienza University of Rome, Rome, Italy

Collection number of type material

33068

Preface

Author (Name, Year)

Ferdinando Bosi, Henrik Skogby, Leonid Reznitskii und Ulf Hålenius (2013)

References

Bosi, F., Skogby, H., Reznitskii, L. and Hålenius, U. (2013) Vanadio-oxy-dravite, IMA 2012-074. CNMNC Newsletter No. 15, February 2013, page 8; Mineralogical Magazine, 77, 112.

Ferdinando Bosi, Henrik Skogby, Leonid Reznitskii, Ulf Hålenius: Vanadio-oxy-dravite, NaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup. American Mineralogist Vol. 99, Nr. 1 (2014) S. 218-224.

IMA group assignments

Other languages

German

Vanadio-Oxy-Dravit

English

Vanadio-oxy-dravite

Alternative Name

German

Vanadiooxydravit

CNMNC (IMA)-Number

IMA 2012-074

CNMNC symbol

Symbol

Vodrv

Locations with GPS information

IDs

GUSID (Global unique identifier short form) gVsHQ2RV_0OEGlkTtkx_oA
GUID (Global unique identifier) 43075B81-5564-43FF-841A-5913B64C7FA0
Database ID 7508