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Kolwezite

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Probably Rosasite Group.


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Classification of KolweziteHide

Approved
5.BA.10

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
A : With Cu, Co, Ni, Zn, Mg, Mn
16a.3.1.7

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
3 : (AB)2(XO3)Zq
11.14.2

11 : Carbonates
14 : Carbonates of Co and Ni

Pronounciation of KolweziteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of KolweziteHide

Hardness:

Optical Data of KolweziteHide

Type:
Biaxial
RI values:
nα = 1.688 nγ = 1.900
Max Birefringence:
δ = 0.212
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v weak

Chemical Properties of KolweziteHide

Formula:
(Cu,Co)2(CO3)(OH)2
IMA Formula:
CuCoCO3(OH)2

Crystallography of KolweziteHide

Crystal System:
Triclinic
Cell Parameters:
a = 9.5 Å, b = 12.15 Å, c = 3.18 Å
α = 93.32°, β = 90.74°, γ = 91.47°
Ratio:
a:b:c = 0.782 : 1 : 0.262
Unit Cell V:
366.28 ų (Calculated from Unit Cell)

Type Occurrence of KolweziteHide

Synonyms of KolweziteHide

Other Language Names for KolweziteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cobaltoan Dolomite14 photos of Kolwezite associated with Cobaltoan Dolomite on mindat.org.
Cobaltoan Calcite12 photos of Kolwezite associated with Cobaltoan Calcite on mindat.org.
Malachite7 photos of Kolwezite associated with Malachite on mindat.org.
Manganoan Calcite4 photos of Kolwezite associated with Manganoan Calcite on mindat.org.
Calcite4 photos of Kolwezite associated with Calcite on mindat.org.
Plancheite3 photos of Kolwezite associated with Plancheite on mindat.org.
Heterogenite3 photos of Kolwezite associated with Heterogenite on mindat.org.
Chrysocolla1 photo of Kolwezite associated with Chrysocolla on mindat.org.
Baryte1 photo of Kolwezite associated with Baryte on mindat.org.
Quartz1 photo of Kolwezite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.BA.05AzuriteCu3(CO3)2(OH)2Mon. 2/m : P21/b
5.BA.10GeorgeiteCu2(CO3)(OH)2 · 6H2OAmor.
5.BA.10Glaukosphaerite(Cu,Ni)2(CO3)(OH)2Mon. 2/m : P21/b
5.BA.10MalachiteCu2(CO3)(OH)2Mon. 2/m : P21/b
5.BA.10Mcguinnessite(Mg,Cu)2(CO3)(OH)2
5.BA.10NullaginiteNi2(CO3)(OH)2Mon.
5.BA.10PokrovskiteMg2(CO3)(OH)2Mon.
5.BA.10Rosasite(Cu,Zn)2(CO3)(OH)2Mon. 2/m : P21/b
5.BA.10Zincrosasite(Zn,Cu)2(CO3)(OH)2Mon.
5.BA.10ChukanoviteFe2+2(CO3)(OH)2Mon. 2/m : P21/b
5.BA.15Aurichalcite(Zn,Cu)5(CO3)2(OH)6Mon. 2/m : P21/m
5.BA.15HydrozinciteZn5(CO3)2(OH)6Mon. 2/m : B2/m
5.BA.20HoldawayiteMn6(CO3)2(OH)7(Cl,OH)Mon. 2/m : B2/m
5.BA.25DeferniteCa6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)Orth. mmm (2/m 2/m 2/m) : Pnma
5.BA.25UM1977-03-COSiO:CaClHCa10-11(CO3)7(SiO4)Cl1-2(OH)1-2Mon.
5.BA.30Loseyite(Mn2+,Zn,Mg)4Zn3(CO3)2(OH)10Mon. 2/m
5.BA.30Sclarite(Zn,Mg,Mn2+)4Zn3(CO3)2(OH)10Mon. 2/m : B2/b

Related Minerals - Dana Grouping (8th Ed.)Hide

16a.3.1.1MalachiteCu2(CO3)(OH)2Mon. 2/m : P21/b
16a.3.1.2Rosasite(Cu,Zn)2(CO3)(OH)2Mon. 2/m : P21/b
16a.3.1.3Glaukosphaerite(Cu,Ni)2(CO3)(OH)2Mon. 2/m : P21/b
16a.3.1.4Mcguinnessite(Mg,Cu)2(CO3)(OH)2
16a.3.1.4Zincrosasite(Zn,Cu)2(CO3)(OH)2Mon.
16a.3.1.5PokrovskiteMg2(CO3)(OH)2Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.14.1SpherocobaltiteCoCO3Trig. 3m (3 2/m) : R3c
11.14.3NullaginiteNi2(CO3)(OH)2Mon.
11.14.4HellyeriteNiCO3 · 5.5H2OMon. 2/m : P2/m
11.14.5OtwayiteNi2(CO3)(OH)2 · H2OOrth.
11.14.6ZaratiteNi3(CO3)(OH)4 · 4H2O ?Iso.
11.14.7KambaldaiteNaNi4(CO3)3(OH)3 · 3H2OHex.
11.14.8Glaukosphaerite(Cu,Ni)2(CO3)(OH)2Mon. 2/m : P21/b
11.14.9GaspéiteNi(CO3)Hex.
11.14.10ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig.
11.14.11ComblainiteNi4Co2(OH)12[CO3] · 3H2OTrig.
11.14.12SzymańskiiteHg16(Ni,Mg)6(CO3)12(OH)12(H3O)8•3H2OHex.

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 KolweziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1980): 65: 1067.
Bulletin de Mineralogie (1980): 103: 179-184.
Perchiazzi, N. & Merlino, S. (2006): The malachite-rosasite group: crystal structures of glaukosphaerite and pokrovskite. European Journal of Mineralogy, 18, 787-792. [with comments on probable structure of kolwezite]

Internet Links for KolweziteHide

Localities for KolweziteHide

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.
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
    • Katanga Copper Crescent
Paul De Bondt
      • Kolwezi District
        • Kamoto
Herve Osana photo
Gauthier, G. & Deliens, M. (1999): Cobalt minerals of the Katanga Crescent, Congo. Mineralogical Record 30 (4): 255-273
        • Kolwezi
No reference listed
Bull.Minéral.(1980) 103, 179-184
[MinRec 22:13-20,28]
Gauthier, G. & Deliens, M. (1999): Cobalt minerals of the Katanga Crescent, Congo. Mineralogical Record 30 (4): 255-273
Germany
 
  • North Rhine-Westphalia
    • Niederberg area
      • Wülfrath
        • Rohdenhaus
Schnorrer-Köhler, G. (1991): Mineralogische Notizen V. Aufschluss 42, 155-171.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
Katerinopoulos, A. (1996): Bisher nicht bekannte Minerale aus den Lavrion-Bergwerken. Lapis, 21 (11), 39; 62.
USA
 
  • Colorado
    • Hinsdale Co.
Minerals of Colorado (1997)
Mineral and/or Locality  
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