Mineralogy Database

Cobaltkieserite Mineral Data

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General Cobaltkieserite Information

Help on Chemical  Formula: Chemical Formula: CoSO4•H2O
Help on Composition: Composition: Molecular Weight = 175.01 gm
   Cobalt    33.00 %  Co   41.96 % CoO
   Silicon    0.16 %  Si    0.34 % SiO2
   Arsenic    2.57 %  As    3.94 % As2O5
   Hydrogen   1.15 %  H    10.29 % H2O
   Sulfur    17.41 %  S    39.12 % S2O5
   Oxygen    45.71 %  O
            ______        ______ 
            100.00 %       95.66 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Co0.98S0.95As0.06Si0.01O4•(H2O)
Help on Environment: Environment: Oxidation products on a museum specimen of copper-cobalt ore collected from the Bastnas deposit.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Bastnas, near Riddarhyttan, Skinnskatteberg, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Co analog of kieserite.
Help on Synonym: Synonym: IMA2002-004

Cobaltkieserite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9198:1:1.0067
Help on Cell Dimensions: Cell Dimensions: a = 6.98, b = 7.588, c = 7.639, Z = 4; beta = 118.65° V = 355.06 Den(Calc)= 3.27
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.405(1)(112), 3.062(0.56)(200), 2.513(0.49)(022),3.339(0.34)(111), 4.829(0.33)(111), 3.291(0.32), 2.567(0.3),

Physical Properties of Cobaltkieserite

Help on Color: Color: Pink.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Powdery - Forms a loose, poorly-coherent pulverulent mass.
Help on Habit: Habit: Water Soluble - Water soluble mineral.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: pale pink

Optical Properties of Cobaltkieserite

Help on Optical Data: Optical Data: Biaxial (+)
  NCalc= 1.38 - from Gladstone-Dale relationship (KC = 0.1172) where Ncalc=Dcalc*KC+1

Calculated Properties of Cobaltkieserite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.21 gm/cc
note: Specific Gravity of Cobaltkieserite =3.27 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0016015833
Boson Index = 0.9983984167
Help on Photoelectric: Photoelectric: PECobaltkieserite = 13.83 barns/electron
U=PECobaltkieserite x rElectron Density= 44.32 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cobaltkieserite is Not Radioactive

Cobaltkieserite Classification

Help on  Dana Class: Dana Class: (29)Hydrated Acid and Sulfates
  (29.06)where A XO4 � x(H2O)
  (29.06.02)Kieserite Group (Mono-hydrates) Kieserite MgSO4•(H2O) C 2/c 2/m Szomolnokite FeSO4•(H2O) A2/a 2/m Szmikite MnSO4•(H2O) A2/a 2/m Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m Cobaltkieserite! CoSO4•H2O C 2/c 2/m
Help on  Strunz Class: Strunz Class: 07.CB.05 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
07.CB.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m
07.CB.05 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m
07.CB.05 Kieserite MgSO4•(H2O) C 2/c 2/m
07.CB.05 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1
07.CB.05 Szomolnokite FeSO4•(H2O) A2/a 2/m
07.CB.05 Szmikite MnSO4•(H2O) A2/a 2/m
07.CB.05 Cobaltkieserite! CoSO4•H2O C 2/c 2/m

Other Cobaltkieserite Information

Help on References: References: NAME( AmMin, 41:931) PHYS. PROP.(AmMin, 41:931) OPTIC PROP.(AmMin, 41:931)
Help on See Also: See Also: Links to other databases for Cobaltkieserite :
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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Dana No: Strunz No: 07.CB.05





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