Stoiberite Mineral Data

Stoiberite Mineral Data +

General Stoiberite Information

Chemical Formula:

Cu5V+++++2O10

Composition:

Molecular Weight = 579.61 gm

Vanadium 17.58 % V 31.38 % V₂O₅

Copper 54.82 % Cu 68.62 % CuO

Oxygen 27.60 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu₅V⁵⁺₂O₁₀

IMA Status:

Approved IMA 1979

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 2557

PDF 33-504

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Stoiberite Crystallography

Axial Ratios:

a:b:c =2.5857:1:1.385

Cell Dimensions:

a = 15.654, b = 6.054, c = 8.385, Z = 4; beta = 102.29° V = 776.43 Den(Calc)= 4.96

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

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

By Intensity(I/I_o): 7.92(1), 2.095(0.8), 2.755(0.8),

Physical Properties of Stoiberite

Color:

Black, Reddish brown.

Density:

4.96

Diaphaniety:

Opaque

Luster:

Metallic

Streak:

red brown

Optical Properties of Stoiberite

Optical Data:

NCalc= 2.11 - from Gladstone-Dale relationship (KC = 0.2233) where Ncalc=Dcalc*KC+1
NCalc= 2.11 - from Gladstone-Dale relationship (KC = 0.2233) where Ncalc=Dmeas*KC+1

Calculated Properties of Stoiberite

Electron Density:

r_electron=4.64 gm/cc
note: r_Stoiberite=4.96 gm/cc.

Fermion Index

Fermion Index = 0.00057
Boson Index = 0.99943

Photoelectric:

PE_Stoiberite= 28.12 barns/electron
U=PE_Stoiberite x r_electron= 130.43 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Stoiberite is Not Radioactive

Stoiberite Classification

Dana Class:

41.4.5.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.4)where (A B)5 (XO4)2 Zq

(41.4.5)Dana Group

41.4.5.1 Stoiberite Cu5V2O10 P 2₁/n 2/m

41.4.5.2 Averievite! Cu5(VO4)2O2·CuCl2 P 3 3

Strunz Class:

VII/B.07-10 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds

VII/B.07 - Stoiberite - Fingerite series

VII/B.07-05 Coparsite! Cu4O2[(As,V)O4]Cl Pbcm 2/m 2/m 2/m

VII/B.07-10 Stoiberite Cu5V2O10 P 2₁/n 2/m

VII/B.07-15 Averievite! Cu5(VO4)2O2·CuCl2 P 3 3

VII/B.07-20 Fingerite Cu11(VO4)6O2 P1 1

VII/B.07-30 Urusovite! Cu[AlAsO5] P 2₁/c 2/m

Other Stoiberite Information

References:

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

See Also:

Links to other databases for Stoiberite :
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 - WWW-MINCRYST 13 -École des Mines de Paris

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

Stoiberite

Cu5V+++++2O10
Dana No: 41.4.5.1 Strunz No: VII/B.07-10
Locality:

Notes: