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Cobaltkieserite Mineral Data
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General Cobaltkieserite Information
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 Chemical Formula: |
CoSO4•H2O |
| Composition: |
Molecular Weight = 175.01 gm |
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Cobalt 33.00 % Co 41.96 % CoO |
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Silicon 0.16 % Si 0.34 % SiO2 |
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Arsenic 2.57 % As 3.94 % As2O5 |
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Hydrogen 1.15 % H 10.29 % H2O |
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Sulfur 17.41 % S 39.12 % S2O5 |
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Oxygen 45.71 % O |
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______ ______ |
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100.00 % 95.66 % = TOTAL OXIDE |
| Empirical Formula: |
Co0.98S0.95As0.06Si0.01O4•(H2O) |
| Environment: |
Oxidation products on a museum specimen of copper-cobalt ore collected from the Bastnas deposit. |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Bastnas, near Riddarhyttan, Skinnskatteberg, Sweden. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Co analog of kieserite. |
| Synonym: |
IMA2002-004 |
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Cobaltkieserite Crystallography
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| Axial Ratios: |
a:b:c =0.9198:1:1.0067 |
| Cell Dimensions: |
a = 6.98, b = 7.588, c = 7.639, Z = 4; beta = 118.65° V = 355.06 Den(Calc)= 3.27 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c |
| 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), |
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Physical Properties of Cobaltkieserite
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| Color: |
Pink. |
| Diaphaneity: |
Translucent |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Powdery - Forms a loose, poorly-coherent pulverulent mass. |
| Habit: |
Water Soluble - Water soluble mineral. |
| Hardness: |
2-3 - Gypsum-Calcite |
| Luster: |
Earthy (Dull) |
| Streak: |
pale pink |
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Optical Properties of Cobaltkieserite
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| Optical Data: |
Biaxial (+) |
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NCalc= 1.38 - from Gladstone-Dale relationship (KC = 0.1172) where Ncalc=Dcalc*KC+1
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Calculated Properties of Cobaltkieserite
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| Electron Density: |
Bulk Density (Electron Density)=3.21 gm/cc
note: Specific Gravity of Cobaltkieserite =3.27 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0016015833
Boson Index = 0.9983984167 |
| Photoelectric: |
PECobaltkieserite = 13.83 barns/electron
U=PECobaltkieserite x rElectron Density= 44.32 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cobaltkieserite is Not Radioactive |
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Cobaltkieserite Classification
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| Dana Class: |
29.06.02.07 (29)Hydrated Acid and Sulfates |
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(29.06)where A XO4 � x(H2O) |
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(29.06.02)Kieserite Group (Mono-hydrates) |
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29.06.02.01 Kieserite MgSO4•(H2O) C 2/c 2/m |
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29.06.02.02 Szomolnokite FeSO4•(H2O) A2/a 2/m |
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29.06.02.03 Szmikite MnSO4•(H2O) A2/a 2/m |
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29.06.02.04 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1 |
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29.06.02.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m |
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29.06.02.06 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m |
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29.06.02.07 Cobaltkieserite! CoSO4•H2O C 2/c 2/m |
| Strunz Class: |
07.CB.05 07 - SULFATES (SELENATES, TELLURATES) |
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07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O |
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07.CB -With only medium-sized cations |
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07.CB.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m |
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07.CB.05 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m |
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07.CB.05 Kieserite MgSO4•(H2O) C 2/c 2/m |
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07.CB.05 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1 |
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07.CB.05 Szomolnokite FeSO4•(H2O) A2/a 2/m |
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07.CB.05 Szmikite MnSO4•(H2O) A2/a 2/m |
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07.CB.05 Cobaltkieserite! CoSO4•H2O C 2/c 2/m |
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Other Cobaltkieserite Information
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| References: |
NAME( AmMin, 41:931) PHYS. PROP.(AmMin, 41:931) OPTIC PROP.(AmMin, 41:931) |
| 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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Print or Cut-and-Paste your Cobaltkieserite Specimen Label here :
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Cobaltkieserite
CoSO4•H2O
Dana No: 29.06.02.07 Strunz No: 07.CB.05
Locality:
Notes:
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