Comblainite Mineral Data

Comblainite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Comblainite Information

Help on Chemical Formula: Chemical Formula: Ni++6Co+++2(CO3)(OH)16•4(H2O)
Help on Composition: Composition: Molecular Weight = 874.19 gm
   Cobalt    13.48 %  Co   18.97 % Co2O3
   Nickel    40.28 %  Ni   51.26 % NiO
   Hydrogen   2.77 %  H    24.73 % H2O
   Carbon     1.37 %  C     5.03 % CO2
   Oxygen    42.09 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ni6Co2(CO3)(OH)16•4(H2O)
Help on Environment: Environment: Secondary mineral found on altered uraninite in the uranium deposits at Shinkolobwe.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Shinkolobwe mine (Kasolo mine), Shaba (Katanga), Congo (Zaire). Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Gordon Comblain (1929-) of the Musee Royal de l'Afrique Centrale, Tervuren, Belgium who discovered the mineral.
 

Search for Comblainite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Comblainite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:7.49671
Help on Cell Dimensions: Cell Dimensions: a = 6.08, c = 45.58, Z = 3; V = 1,459.19 Den(Calc)= 2.98
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.64(1), 2.567(0.7), 3.808(0.5),
 

Physical Properties of Comblainite

Help on Color: Color: Blue, Turquoise.
Help on Density: Density: 3.05
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Pearly
 

Optical Properties of Comblainite

Help on Dichroism (e): Dichroism (e): none.
Help on Dichroism (w): Dichroism (w): none.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.089 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.068 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2305,KPDmeas= 0.2252,KC= 0.2473
Ncalc = 1.74 - 1.75
Help on Optical Data: Optical Data: Uniaxial (-), e=1.684, w=1.69, bire=0.0060.
 

Calculated Properties of Comblainite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Comblainite =2.98 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0049091668
Boson Index = 0.9950908332
Help on Photoelectric: Photoelectric: PEComblainite = 20.21 barns/electron
U=PEComblainite x rElectron Density= 60.07 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Comblainite is Not Radioactive
 

Comblainite Classification
Help on Dana Class: Dana Class: 16b.06.03.03 (16b)Carbonates - Hydroxyl or Halogen
  (16b.06)Dana Type
  (16b.06.03)Sjorgrenite-Hydrotalcite Group (Hydrotalcite Subgroup:Rhombohedral)
 
16b.06.03.01 Reevesite Ni6Fe2(CO3)(OH)16•4(H2O) R 3m 3 2/m
 
16b.06.03.02 Takovite Ni6Al2(OH)16(CO3,OH)•4(H2O) R 3m 3 2/m
 
16b.06.03.03 Comblainite Ni6Co2(CO3)(OH)16•4(H2O) R 3m 3 2/m
Help on Strunz Class: Strunz Class: 05.DA.50 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DA -With medium-sized cations
 
05.DA.50 Desautelsite Mg6Mn2(CO3)(OH)16•4(H2O) R 3m or R 3m Trig
 
05.DA.50 Comblainite Ni6Co2(CO3)(OH)16•4(H2O) R 3m 3 2/m
 
05.DA.50 Hydrotalcite Mg6Al2(CO3)(OH)16•4(H2O) R 3m 3 2/m
 
05.DA.50 Pyroaurite Mg6Fe2(CO3)(OH)16•4(H2O) R 3m 3 2/m
 
05.DA.50 Reevesite Ni6Fe2(CO3)(OH)16•4(H2O) R 3m 3 2/m
 
05.DA.50 Stichtite Mg6Cr2(CO3)(OH)16•4(H2O) R 3m 3 2/m
 
05.DA.50 Takovite Ni6Al2(OH)16(CO3,OH)•4(H2O) R 3m 3 2/m
 

Other Comblainite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Comblainite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Comblainite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Comblainite :

A Bijoux Google Search for Comblainite
Adam's Minerals Google Search for Comblainite
Cape Minerals Google Search for Comblainite
Dakota Matrix Minerals Google Search for Comblainite
Excalibur Mineral Corp. Google Search for Comblainite
Exceptional Minerals Google Search for Comblainite
John Betts Fine Minerals Search for Comblainite
McDougall Minerals Google Search for Comblainite
Mineral News Website Link
Rock and Mineral Shows Google Search for Comblainite
Weinrich Minerals, Inc. Google Search for Comblainite

Ask about Comblainite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Comblainite

Ni++6Co+++2(CO3)(OH)16•4(H2O)
Dana No: 16b.06.03.03 Strunz No: 05.DA.50
Locality:

 

Notes: