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Cobaltneustadtelite Mineral Data

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General Cobaltneustadtelite Information

Help on Chemical  Formula: Chemical Formula: Bi2Fe+++(Co,Fe+++)(O,OH)2(OH)2(AsO4)2
Help on Composition: Composition: Molecular Weight = 876.83 gm
   Iron       7.64 %  Fe   10.93 % Fe2O3
   Cobalt     4.03 %  Co    5.67 % Co2O3
   Nickel     1.34 %  Ni    1.70 % NiO
   Bismuth   47.67 %  Bi   53.14 % Bi2O3
   Arsenic   17.09 %  As   26.21 % As2O5
   Hydrogen   0.33 %  H     2.98 % H2O
   Oxygen    21.90 %  O
            ______        ______ 
            100.00 %      100.64 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi2Fe3+1.2Co0.6Ni0.2O1.1(OH)2.9(AsO4)2
Help on Environment: Environment: Small vugs in coarse quartz crystals. Small vugs in coarse quartz crystals. Co analogue of neust�dtelite and medenbachite; structure
Help on IMA Status: IMA Status: Approved IMA 2000 (Dana # Added)
Help on Locality: Locality: Mine dumps in the Schneeberg-Neust�dtel area, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality and chemical composition.
Help on Synonym: Synonym: IMA2000-012
 

Cobaltneustadtelite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4892:1:1.5188
Help on Cell Dimensions: Cell Dimensions: a = 9.156, b = 6.148, c = 9.338, Z = 2; alpha = 83.24°, beta = 70.56°, gamma = 86.91° V = 491.52 Den(Calc)= 5.92
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.753(1)(202), 2.901(0.96)(203), 2.666(0.72)(202),3.551(0.55)(210), 8.756(0.55)(001), 3.507(0.44)(211), 2.531(0.41)(013),
Help on Forms: Forms:

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Drag2 - Resize

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Help on Above

Forms: ( 1 4 3) ( 1 0 0) ( 0 0 1)

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Physical Properties of Cobaltneustadtelite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Brown.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: light brown
 

Optical Properties of Cobaltneustadtelite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.043 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1819,KC= 0.19
Ncalc = 2.12
Help on Optical Data: Optical Data: Biaxial (-), a=2.02, b=2.09, g=2.12, bire=0.1000
 

Calculated Properties of Cobaltneustadtelite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.18 gm/cc
note: Specific Gravity of Cobaltneustadtelite =5.92 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0018776641
Boson Index = 0.9981223359
Help on Photoelectric: Photoelectric: PECobaltneustadtelite = 893.33 barns/electron
U=PECobaltneustadtelite x rElectron Density=4,630.87 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cobaltneustadtelite is Not Radioactive
 

Cobaltneustadtelite Classification

Help on  Dana Class: Dana Class: 41.04.09.03 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.04)where (A B)5 (XO4)2 Zq
  (41.04.09)Medenbachite Group
 
41.04.09.01 Medenbachite! Bi2Fe(Cu,Fe)(O,OH)2(OH)2(AsO4)2 P1 1
 
41.04.09.02 Neustadtelite! Bi2Fe(Fe,Co)(O,OH)2(OH)2(AsO4)2 P1 1
 
41.04.09.03 Cobaltneustadtelite! Bi2Fe(Co,Fe)(O,OH)2(OH)2(AsO4)2 P1 1
Help on  Strunz Class: Strunz Class: 08.BK.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BK -With medium-sized and large cations, (OH, etc.)
 
08.BK.10 Medenbachite! Bi2Fe(Cu,Fe)(O,OH)2(OH)2(AsO4)2 P1 1
 
08.BK.10 Cobaltneustadtelite! Bi2Fe(Co,Fe)(O,OH)2(OH)2(AsO4)2 P1 1
 
08.BK.10 Neustadtelite! Bi2Fe(Fe,Co)(O,OH)2(OH)2(AsO4)2 P1 1
 

Other Cobaltneustadtelite Information

Help on References: References: NAME( AmMin, Vol 87, p 726) PHYS. PROP.(AmMin, Vol 87, p 726) OPTIC PROP.(AmMin, Vol 87, p 726)
Help on See Also: See Also: Links to other databases for Cobaltneustadtelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Cobaltneustadtelite

Bi2Fe+++(Co,Fe+++)(O,OH)2(OH)2(AsO4)2
Dana No: 41.04.09.03 Strunz No: 08.BK.10
Locality:

 

Notes:

 

 
   
 


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