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Sphaerocobaltite Mineral Data

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General Sphaerocobaltite Information

Help on Chemical  Formula: Chemical Formula: CoCO3
Help on Composition: Composition: Molecular Weight = 118.94 gm
   Cobalt  49.55 %  Co   63.00 % CoO
   Carbon  10.10 %  C    37.00 % CO2
   Oxygen  40.35 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Co(CO3)
Help on Environment: Environment: Altered Co-Ni veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1877
Help on Locality: Locality: Schneeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition and form.
Help on Name Pronunciation: Name Pronunciation: Sphaerocobaltite + Pronunciation Say SPHAEROCOBALTITE
Help on Synonym: Synonym: Cobaltocalcite
  ICSD 61066
  PDF 11-692
 

Sphaerocobaltite Image

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  Sphaerocobaltite

Comments: Calcite with numerous crystals of red sphaerocobaltite to 3 mm across.
Location: Kamoto Mine, Mashamba, Katanga, Dem. Rep. of the Congo. Scale: Picture size 1.5 cm.
© John Veevaert

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  Vladimirite   Sphaerocobaltite

Comments: Translucent white prismatic vladimirite microcrystals with pink sphaerocobaltite.
Location: Irhtem Mine, near Bou Azzer, Ouarzazate, Morocco. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sphaerocobaltite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:3.21034
Help on Cell Dimensions: Cell Dimensions: a = 4.659, c = 14.957, Z = 6; V = 281.16 Den(Calc)= 4.21
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.743(1), 3.551(0.4), 1.702(0.3),
 

Physical Properties of Sphaerocobaltite

Help on Cleavage: Cleavage: {1011} Perfect, {1011} Perfect, {1011} Perfect
Help on Color: Color: Gray brown, Pink, Black, Rose red.
Help on Density: Density: 4.1
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: pink
 

Optical Properties of Sphaerocobaltite

Help on Dichroism (e): Dichroism (e): violet red.
Help on Dichroism (w): Dichroism (w): rose red.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.051 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.076 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1764,KPDmeas= 0.1811,KC= 0.1908
Ncalc = 1.78 - 1.8
Help on Optical Data: Optical Data: Uniaxial (-), e=1.6, w=1.885, bire=0.2850.
 

Calculated Properties of Sphaerocobaltite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.93 gm/cc
note: Specific Gravity of Sphaerocobaltite =4.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0013044981
Boson Index = 0.9986955019
Help on Photoelectric: Photoelectric: PESphaerocobaltite = 17.04 barns/electron
U=PESphaerocobaltite x rElectron Density= 66.98 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sphaerocobaltite is Not Radioactive
 

Sphaerocobaltite Classification

Help on  Dana Class: Dana Class: 14.01.01.05 (14)Anhydrous Carbonates
  (14.01)with Simple Formula A+ CO3
  (14.01.01)Calcite Group (Trigonal: R-3c)
 
14.01.01.01 Calcite CaCO3 R 3c 3 2/m
 
14.01.01.02 Magnesite MgCO3 R 3c 3 2/m
 
14.01.01.03 Siderite FeCO3 R 3c 3 2/m
 
14.01.01.04 Rhodochrosite MnCO3 R 3c 3 2/m
 
14.01.01.05 Sphaerocobaltite CoCO3 R 3c 3 2/m
 
14.01.01.06 Smithsonite ZnCO3 R 3c 3 2/m
 
14.01.01.07 Otavite CdCO3 R 3c 3 2/m
 
14.01.01.08 Gaspeite (Ni,Mg,Fe)CO3 R 3c 3 2/m
Help on  Strunz Class: Strunz Class: 05.AB.05 05 - CARBONATES (NITRATES)
  05.A - Carbonates without additional anions, without H2O
  05.AB -Alkali-earth (and other M2+) carbonates
 
05.AB.05 Calcite CaCO3 R 3c 3 2/m
 
05.AB.05 Gaspeite (Ni,Mg,Fe)CO3 R 3c 3 2/m
 
05.AB.05 Magnesite MgCO3 R 3c 3 2/m
 
05.AB.05 Rhodochrosite MnCO3 R 3c 3 2/m
 
05.AB.05 Otavite CdCO3 R 3c 3 2/m
 
05.AB.05 Sphaerocobaltite CoCO3 R 3c 3 2/m
 
05.AB.05 Siderite FeCO3 R 3c 3 2/m
 
05.AB.05 Smithsonite ZnCO3 R 3c 3 2/m
 

Other Sphaerocobaltite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Sphaerocobaltite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineral and Gemstone Kingdom
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Sphaerocobaltite

CoCO3
Dana No: 14.01.01.05 Strunz No: 05.AB.05
Locality:

 

Notes:

 

 
   
 


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