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Cobaltkieserite

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Formula:
CoSO4 · H2O
Colour:
Pink
Lustre:
Earthy
Hardness:
2 - 3
Specific Gravity:
3.28 (Calculated)
Crystal System:
Monoclinic
Member of:
A cobalt analogue of kieserite.

A synthetic kieserite-cobaltkieserite solid solution has been analyzed (Bechtold and Wildner, 2016).


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Classification of CobaltkieseriteHide

Approved
Approval Year:
2002
7.CB.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations

Physical Properties of CobaltkieseriteHide

Earthy
Colour:
Pink
Hardness:
2 - 3 on Mohs scale
Hardness Data:
Measured
Density:
3.28 g/cm3 (Calculated)

Optical Data of CobaltkieseriteHide

Type:
Biaxial (+)

Chemical Properties of CobaltkieseriteHide

Formula:
CoSO4 · H2O

Crystallography of CobaltkieseriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 6.98 Å, b = 7.588 Å, c = 7.639 Å
β = 118.65°
Ratio:
a:b:c = 0.92 : 1 : 1.007
Unit Cell V:
355.06 ų
Z:
4
Morphology:
Euhedral, thick tablular to "bipyramidal" habit.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.829 (33)
3.405 (100)
3.339 (34)
3.291 (32)
3.062 (56)
2.567 (30)
2.513 (49)

Type Occurrence of CobaltkieseriteHide

General Appearance of Type Material:
Euhedral crystals 0.5-3µm
Geological Setting of Type Material:
In a dark, dense quartzitic rock.
Associated Minerals at Type Locality:

Synonyms of CobaltkieseriteHide

Other Language Names for CobaltkieseriteHide

Simplified Chinese:水钴矾
Traditional Chinese:水鈷礬

Relationship of Cobaltkieserite to other SpeciesHide

Member of:
Other Members of this group:
Dwornikite(Ni,Fe)SO4 · H2OMon. 2/m : B2/b
GunningiteZnSO4 · H2OMon. 2/m : B2/b
KieseriteMgSO4 · H2OMon. 2/m
SerrabrancaiteMnPO4 · H2OMon. 2/m : B2/b
SzmikiteMnSO4 · H2OMon.
SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b

Common AssociatesHide

Associated Minerals Based on Photo Data:
Erythrite1 photo of Cobaltkieserite associated with Erythrite on mindat.org.
Scorodite1 photo of Cobaltkieserite associated with Scorodite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.CB.05Dwornikite(Ni,Fe)SO4 · H2OMon. 2/m : B2/b
7.CB.05GunningiteZnSO4 · H2OMon. 2/m : B2/b
7.CB.05KieseriteMgSO4 · H2OMon. 2/m
7.CB.05Poitevinite(Cu,Fe,Zn)SO4 · H2OTric.
7.CB.05SzmikiteMnSO4 · H2OMon.
7.CB.05SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b
7.CB.07SanderiteMgSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CB.10BonattiteCuSO4 · 3H2OMon.
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2OMon. 2/m : P21/b
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
7.CB.15RozeniteFeSO4 · 4H2OMon. 2/m : P21/b
7.CB.15StarkeyiteMgSO4 · 4H2OMon. 2/m : P21/b
7.CB.15DrobeciteCdSO4 · 4H2OMon. 2/m : P21/m
7.CB.15CranswickiteMgSO4 · 4H2OMon. m : Bb
7.CB.20ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
7.CB.20JôkokuiteMnSO4 · 5H2OTric.
7.CB.20PentahydriteMgSO4 · 5H2OTric.
7.CB.20SiderotilFeSO4 · 5H2OTric.
7.CB.25Bianchite(Zn,Fe)SO4 · 6H2OMon. 2/m : P2/m
7.CB.25Chvaleticeite(Mn,Mg)SO4 · 6H2OMon. 2/m : B2/b
7.CB.25FerrohexahydriteFeSO4 · 6H2OMon. 2/m : B2/b
7.CB.25HexahydriteMgSO4 · 6H2OMon. 2/m : P2/m
7.CB.25Moorhouseite(Co,Ni,Mn)SO4 · 6H2OMon.
7.CB.25Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2OMon.
7.CB.30RetgersiteNiSO4 · 6H2OTet. 4 2 2 : P41 21 2
7.CB.35BieberiteCoSO4 · 7H2OMon. 2/m : P2/m
7.CB.35BoothiteCuSO4 · 7H2OMon.
7.CB.35MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
7.CB.35MelanteriteFeSO4 · 7H2OMon. 2/m : P21/b
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2OMon.
7.CB.35Alpersite(Mg,Cu)[SO4] · 7H2OMon. 2/m : P21/b
7.CB.40EpsomiteMgSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40GoslariteZnSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40MorenositeNiSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.45AlunogenAl2(SO4)3 · 17H2OTric. 1
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2O
7.CB.50AluminocoquimbiteFeAl(SO4)3 · 9H2OTrig. 3m (3 2/m) : P3 1c
7.CB.55CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5Trig. 3m (3 2/m) : P3 1c
7.CB.55ParacoquimbiteFe2(SO4)3 · 9H2OTrig. 3 : R3
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.CB.60KorneliteFe2(SO4)3 · 7H2OMon. 2/m : P21/m
7.CB.65QuenstedtiteFe2(SO4)3 · 11H2OTric. 1 : P1
7.CB.70LauseniteFe2(SO4)3·5H2OMon. 2/m : P21/m
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2OTric. 1 : P1
7.CB.75RömeriteFe2+Fe3+2(SO4)4 · 14H2OTric. 1 : P1
7.CB.80RansomiteCuFe2(SO4)4 · 6H2OMon. 2/m : P21/b
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
7.CB.85BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2OMon.
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2OMon.
7.CB.90MeridianiiteMgSO4 · 11H2OTric. 1 : P1

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for CobaltkieseriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Holtstam, D. (2002): Geologiska Föreningens i Stockholm Förhandlinger: 124: 117-119.
Bechtold, A. & Wildner, M. (2016): Crystal chemistry of the kieserite–cobaltkieserite solid solution, Mg1-xCox(SO4)·H2O: well-behaved oddities. European Journal of Mineralogy, 28, 43-52.

Internet Links for CobaltkieseriteHide

Localities for CobaltkieseriteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
Jan Hloušek
Sweden (TL)
 
  • Västmanland
    • Skinnskatteberg
      • Riddarhyttan
Holtstam, D. (2002): Cobaltkieserite, CoSO4·H2O, a new mineral species from Bastnäs, Skinnskatteberg, Sweden. Geologiska Föreningens i Stockholm Förhandlingar, 124, 117-119
Mineral and/or Locality  
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