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Tungstibite

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About TungstibiteHide

Formula:
Sb3+2WO6
Colour:
Green to dark green, yellow
Lustre:
Pearly, Dull
Hardness:
2
Specific Gravity:
6.9 (Calculated)
Crystal System:
Orthorhombic
Name:
The name refers to its tungsten (tung) and antimony (Latin = stibium) (stib) content.
The Sb analogue of Russellite.


Classification of TungstibiteHide

Approved
Approval Year:
1993
4.DE.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
E : With medium-sized cations; with various polyhedra
Dana 7th ed.:
48.2.3.1
48.2.3.1

48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
2 : A2XO4

Physical Properties of TungstibiteHide

Pearly, Dull
Transparency:
Translucent, Opaque
Colour:
Green to dark green, yellow
Streak:
Greenish
Hardness:
Density:
6.9 g/cm3 (Calculated)

Optical Data of TungstibiteHide

Type:
Biaxial (+)
RI values:
nα = 2.285 nβ = 2.400 nγ = 2.580
2V:
Measured: 82° , Calculated: 84°
Max Birefringence:
δ = 0.295
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
strong
Pleochroism:
Visible
Comments:
X = dark green to brownish green
Y = dark green
Z = pale green to yellowish
Z = c

Chemical Properties of TungstibiteHide

Formula:
Sb3+2WO6
IMA Formula:
Sb2WO6

Crystallography of TungstibiteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Cell Parameters:
a = 8.59 Å, b = 9.58 Å, c = 6.12 Å
Ratio:
a:b:c = 0.897 : 1 : 0.639
Unit Cell V:
503.63 ų
Z:
4
Morphology:
Elongated blady crystals, flattened on (001). Often aggregate into radiating spheres.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.32 (10)
3.06 (10)
2.98 (4)
2.73 (6)
2.46 (5)
1.919 (4)
1.829 (3)

Type Occurrence of TungstibiteHide

Synonyms of TungstibiteHide

Other Language Names for TungstibiteHide

German:Tungstibit
Spanish:Tungstibita

Relationship of Tungstibite to other SpeciesHide

Other Members of this group:
KoechliniteBi2MoO6Orth. mm2 : Pna21
RusselliteBi2WO6Orth.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cervantite11 photos of Tungstibite associated with Cervantite on mindat.org.
Tetrahedrite3 photos of Tungstibite associated with Tetrahedrite on mindat.org.
Quartz2 photos of Tungstibite associated with Quartz on mindat.org.
Tennantite2 photos of Tungstibite associated with Tennantite on mindat.org.
Chalcopyrite2 photos of Tungstibite associated with Chalcopyrite on mindat.org.
Arsenopyrite1 photo of Tungstibite associated with Arsenopyrite on mindat.org.
Fluorite1 photo of Tungstibite associated with Fluorite on mindat.org.
Covellite1 photo of Tungstibite associated with Covellite on mindat.org.
Silver1 photo of Tungstibite associated with Silver on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.DE.05DowneyiteSeO2Tet.
4.DE.10Koragoite(Mn2+,Fe3+)3(Nb,Ta,Ti)2(Nb,Mn)2(W,Ta)2O20Mon. 2 : P21
4.DE.15KoechliniteBi2MoO6Orth. mm2 : Pna21
4.DE.15RusselliteBi2WO6Orth.
4.DE.20TelluriteTeO2Orth. mmm (2/m 2/m 2/m)
4.DE.25ParatelluriteTeO2Tet.
4.DE.30BismutotantaliteBi(Ta,Nb)O4Orth.
4.DE.30BismutocolumbiteBi(Nb,Ta)O4Orth. mmm (2/m 2/m 2/m)
4.DE.30CervantiteSb3+Sb5+O4Orth.
4.DE.30StibiotantaliteSb(Ta,Nb)O4Orth. mm2
4.DE.30StibiocolumbiteSb(Nb,Ta)O4Orth. mm2
4.DE.30ClinocervantiteSb3+Sb5+O4Mon.
4.DE.35BaddeleyiteZrO2Mon. 2/m : P21/b

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 TungstibiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Walenta, K. (1995): Tungstibit, Sb2O3-WO3 - ein neues Mineral von der Grube Clara bei Oberwolfach im mittleren Schwarzwald (Deutschland). Chemie die Erde: 55: 217-224. (in German).
Mineralogical Record: 27: 394.

Internet Links for TungstibiteHide

Localities for TungstibiteHide

ⓘ - 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.
Afghanistan
 
  • Konar Province (Kunar Province; Konarh Province; Konarha Province; Nuristan)
    • Chapa Dara District
http://webmineral.ru/minerals/image.php?id=3065
Germany (TL)
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
WALENTA, K. (1995): Tungstibit, Sb2O3-WO3 - ein neues Mineral von der Grube Clara bei Oberwolfach im mittleren Schwarzwald (Deutschland). - Chem. Erde 55, 217-224.; KOLITSCH, U., GRÖBNER, J. & BAYERL, R. (1995): Die Mineralien der Silber-Antimon-Vererzungen der Grube Clara im Zeitraum 1993 bis 1995. - Erzgräber 9 (2), 61-77.
Thailand
 
  • Phrae Province
Dill, H.G., Melcher, F., and Botz, R. (2008): Ore Geology Reviews 34, 242-262.
Mineral and/or Locality  
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