Stibiocolumbite Mineral Data + Say STIBIOCOLUMBITE

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General Stibiocolumbite Information

Help on Chemical  Formula: Chemical Formula: SbNbO4
Help on Composition: Composition: Molecular Weight = 278.65 gm
   Niobium   33.34 %  Nb   47.70 % Nb2O5
   Antimony  43.69 %  Sb   55.18 % SbO2
   Oxygen    22.97 %  O
            ______        ______ 
            100.00 %      102.87 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: SbNbO4
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1915
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 20344
  PDF 16-907
 

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Stibiocolumbite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4178:1:0.4712
Help on Cell Dimensions: Cell Dimensions: a = 4.929, b = 11.797, c = 5.559, Z = 4; V = 323.24 Den(Calc)= 5.73
Help on Crystal System: Crystal System: Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Pc21n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.13(1), 2.947(0.3), 1.735(0.2),
Click Here for Large Stibiocolumbite Structure Window Crystal Structure:

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Zubkova N V , Pushcharovskii D Y , Giester G , Smolin A S , Tillmanns E , Brandstatter F , Hammer V , Peretyazhko I S , Sapozhnikov A N , Kashaev A A , Neues Jahrbuch fur Mineralogie, Monatshefte , 2002 (2002) p.145-159, Bismutocolumbite, Bi(Nb.79Ta.21)O4, stibiocolumbite, Sb(Nb.67Ta.33)O4 and their, structural relation to the other ABO4 minerals with, stibiotantalite (SbTaO4) structure, Locality: Mesa Grande, California, USA

 

Physical Properties of Stibiocolumbite

Help on Cleavage: Cleavage: [010] Indistinct, [100] Indistinct
Help on Color: Color: Brown, Brownish yellow, Greenish yellow, Reddish brown.
Help on Density: Density: 5.98
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: brownish yellow
 

Optical Properties of Stibiocolumbite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.864 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.946 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2487,KPDmeas= 0.2383,KC= 0.1278
Help on Optical Data: Optical Data: Biaxial (+), a=2.3977, b=2.419, g=2.4588, bire=0.0611, 2V(Calc)=74, 2V(Meas)=73.417.
 

Calculated Properties of Stibiocolumbite

Help on Electron Density: Electron Density:

relectron=5.32 gm/cc
note: rStibiocolumbite =5.98 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00011
Boson Index = 0.99989
Help on Photoelectric: Photoelectric:

PEStibiocolumbite = 197.32 barns/electron
U=PEStibiocolumbite x relectron=1,050.19 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Stibiocolumbite is Not Radioactive

 

Stibiocolumbite Classification

Help on  Dana Class: Dana Class: 8.1.6.1 (8)Multiple Oxides with Nb, Ta, and Ti
  (8.1)where A BO4
  (8.1.6)Dana Group
 
8.1.6.1 Stibiocolumbite SbNbO4 Pc21n mm2
 
8.1.6.2 Stibiotantalite SbTaO4 Pc21n mm2
 
8.1.6.3 Bismutotantalite Bi(Ta,Nb)O4 Pcmn 2/m 2/m 2/m
 
8.1.6.4 Bismutocolumbite Bi(Nb,Ta)O4 Pcnn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: IV/D.25-20 IV - Oxides
  IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds)
  IV/D.25 - Cervantite - Chiluite series
 
IV/D.25-05 Clinocervantite! SbSbO4 C 2/c 2/m
 
IV/D.25-10 Cervantite SbSbO4 Pbn21 mm2
 
IV/D.25-20 Stibiocolumbite SbNbO4 Pc21n mm2
 
IV/D.25-30 Stibiotantalite SbTaO4 Pc21n mm2
 
IV/D.25-35 Bismutocolumbite Bi(Nb,Ta)O4 Pcnn 2/m 2/m 2/m
 
IV/D.25-40 Bismutotantalite Bi(Ta,Nb)O4 Pcmn 2/m 2/m 2/m
 
IV/D.25-70 Chiluite Bi6Te2Mo2O21 P 6322, P 63/m, P 63 Hex
 

Other Stibiocolumbite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Stibiocolumbite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Stibiocolumbite Specimen Label here :

Stibiocolumbite

SbNbO4
Dana No: 8.1.6.1 Strunz No: IV/D.25-20
Locality:

 

Notes:

 

 
   
 
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