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Georgeite

A valid IMA mineral species
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Kondrat et al. (2016) report georgeite as a stable precursor to methanol-synthesis and LTS catalysts.

Redefined in 2023 as "an amorphous alpha-phase hydroxide".


Unique Identifiers
IMA status notes:
Redefined by the IMA

IMA Formula:
Cu2(CO3)(OH)2
First published:
1979
Approval history:
IMA 23-G: redefinition of georgeite
(Mike S. Rumsey)
Type description reference:
Bridge, P. J., Just, J., Hey, M. H. (1979) Georgeite, a new amorphous copper carbonate from the Carr Boyd Mine, Western Australia.Mineralogical Magazine, 43 (325) 97-98doi:10.1180/minmag.1979.043.325.04

Classification of Georgeite

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

Dana 8th ed.:
16a.3.3.1

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

Mineral Symbols
Transparency:
Transparent, Opaque
Colour:
Sky-blue
Comment:
Ridgway Light Cerulean Blue (45-BGBb), Pale Cerulean Blue (45-BG-Bd) to Calamine Blue (45-G-Bd).
Streak:
Pale blue
Hardness:
1 - 2 onMohs scale
Tenacity:
Brittle
Fracture:
Sub-Conchoidal
Density:
2.55(10) g/cm3 (Measured)    
Comment:
Sink float method

Optical Data of Georgeite

Crystallography of Georgeite
General Appearance of Type Material:
Coatings, either powdery or with the appearance of desiccated gel.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA (type).
National Museum of Nature and Science, Tokyo, Japan (type).
Western Australian Museum, Perth, Australia, number MDC 5715 (holotype).
Geological Setting of Type Material:
Copper-nickel mineralization in Archaean greenstone.
Associated Minerals at Type Locality:
ChalconatroniteMalachiteTremolite
Reference:
Bridge, P. J., Just, J., Hey, M. H. (1979) Georgeite, a new amorphous copper carbonate from the Carr Boyd Mine, Western Australia.Mineralogical Magazine, 43 (325) 97-98doi:10.1180/minmag.1979.043.325.04

Other Language Names for Georgeite

Common AssociatesMon. 2/m :P21/b5.BA.10Mcguinnessite(Mg,Cu)2(CO3)(OH)2Mon. 2/m5.BA.10Zincrosasite(Zn,Cu)2(CO3)(OH)2Mon.5.BA.10ParádsasváriteZn2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10Rosasite(Cu,Zn)2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10NullaginiteNi2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10Glaukosphaerite(Cu,Ni)2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10PokrovskiteMg2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10KolweziteCuCo(CO3)(OH)2Tric.5.BA.10ChukanoviteFe2+2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10MalachiteCu2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10PerchiazziiteCo2(CO3)(OH)2Mon. 2/m :P21/b5.BA.15Aurichalcite(Zn,Cu)5(CO3)2(OH)6Mon. 2/m :P21/m5.BA.15HydrozinciteZn5(CO3)2(OH)6Mon. 2/m :B2/m5.BA.20HoldawayiteMn6(CO3)2(OH)7(Cl,OH)Mon. 2/m :B2/m5.BA.25UM1977-03-COSiO:CaClHCa10-11(CO3)7(SiO4)Cl1-2(OH)1-2Mon.5.BA.25DeferniteCa6(CO3)1.58(Si2O7)0.21(OH)7[Cl0.50(OH)0.08(H2O)0.42]Orth.mmm(2/m2/m2/m) :Pnma5.BA.30SclariteZn7(CO3)2(OH)10Mon. 2/m :B2/b5.BA.30Loseyite(Mn2+,Zn,Mg)4Zn3(CO3)2(OH)10Mon. 2/m

Other Information
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    • References for GeorgeiteⓘDeGrussa Copper Mine (DeGrussa Gold-Copper Mine; DeGrussa Mine) ?Murray ThompsonBridge et al. (1979)+1 other reference
    Greece
     
    Solomos C. et al. (2004)
    UK
     
    Pollard et al. (1991)
    Quick NavTopAbout GeorgeiteUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyGeological EnvironmentType OccurrenceOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet LinksReferencesLocalitiesLocality List
     
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