Bismutostibiconite Mineral Data

Bismutostibiconite Mineral Data +

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General Bismutostibiconite Information

Chemical Formula:

Bi(Sb+++++,Fe+++)2O7

Composition:

Molecular Weight = 618.57 gm

Iron 4.51 % Fe 6.45 % Fe₂O₃

Bismuth 43.92 % Bi 48.96 % Bi₂O₃

Antimony 33.46 % Sb 44.45 % Sb₂O₅

Oxygen 18.11 % O

______ ______

100.00 % 99.87 % = TOTAL OXIDE

Empirical Formula:

Bi_1.3Sb_1.7Fe³⁺_0.5O₇

Environment:

Associated as an alteration product of stibnite and other bismuth minerals

IMA Status:

Approved IMA 1983

Locality:

Clara mine, Black Forest, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for its bismuth content and relationship to stibiconite.

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Bismutostibiconite Crystallography

Cell Dimensions:

a = 10.38, Z = 8; V = 1,118.39 Den(Calc)= 7.35

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.01(1), 1.833(0.7), 2.6(0.7),

Physical Properties of Bismutostibiconite

Cleavage:

None

Color:

Green, Greenish brown, Yellow, Yellow brown.

Density:

7.38

Diaphaniety:

Translucent to Opaque

Hardness:

4-5 - Fluorite-Apatite

Luster:

Earthy (Dull)

Optical Properties of Bismutostibiconite

Gladstone-Dale:

CI meas= 0.095 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.092 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1483,KPDmeas= 0.1477,KC= 0.1633

Optical Data:

Isotropic, n=2.09.

Calculated Properties of Bismutostibiconite

Electron Density:

r_electron=6.26 gm/cc
note: r_{Bismutostibiconite}=7.35 gm/cc.

Fermion Index

Fermion Index = 0.00104
Boson Index = 0.99896

Photoelectric:

PE_{Bismutostibiconite}= 946.31 barns/electron
U=PE_{Bismutostibiconite} x r_electron=5,928.02 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bismutostibiconite is Not Radioactive

Bismutostibiconite Classification

Dana Class:

44.1.1.6 (44)Antimonates

(44.1)(A)2 (X2 O6) (O,OH,F)

(44.1.1)Dana Group

44.1.1.1 Stibiconite SbSb2O6(OH) F d3m 4/m 3 2/m

44.1.1.2 Bindheimite Pb2Sb2O6(O,OH) F d3m 4/m 3 2/m

44.1.1.3 Romeite (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F) F d3m 4/m 3 2/m

44.1.1.3a Lewisite! (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m

44.1.1.4 Monimolite (Pb,Ca)2Sb2O7 F d3m 4/m 3 2/m

44.1.1.5 Stetefeldtite Ag2Sb2O6(O,OH) F d3m 4/m 3 2/m

44.1.1.6 Bismutostibiconite Bi(Sb,Fe)2O7 F d3m 4/m 3 2/m

44.1.1.7 Partzite Cu2Sb2(O,OH)7(?) F d3m 4/m 3 2/m

Strunz Class:

IV/C.11-60 IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.11 - Stibiconite group, Partzite - Bindheimite series

IV/C.11-10 Partzite Cu2Sb2(O,OH)7(?) F d3m 4/m 3 2/m

IV/C.11-20 Stetefeldtite Ag2Sb2O6(O,OH) F d3m 4/m 3 2/m

IV/C.11-30 Lewisite (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m

IV/C.11-40 Romeite (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F) F d3m 4/m 3 2/m

IV/C.11-50 Stibiconite SbSb2O6(OH) F d3m 4/m 3 2/m

IV/C.11-60 Bismutostibiconite Bi(Sb,Fe)2O7 F d3m 4/m 3 2/m

IV/C.11-70 Bindheimite Pb2Sb2O6(O,OH) F d3m 4/m 3 2/m

Other Bismutostibiconite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Bismutostibiconite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 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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Bismutostibiconite

Bi(Sb+++++,Fe+++)2O7
Dana No: 44.1.1.6 Strunz No: IV/C.11-60
Locality:

Notes: