Georgeite Mineral Data

General Georgeite Information

Chemical Formula: Cu++5(CO3)3(OH)4•6(H2O) Composition: Molecular Weight = 639.86 gm    Copper    49.66 %  Cu   62.16 % CuO    Hydrogen   2.21 %  H    19.71 % H₂O    Carbon     5.63 %  C    20.63 % CO₂    Oxygen    42.51 %  O             ______        ______              100.00 %      102.50 % = TOTAL OXIDE Empirical Formula: Cu₅(CO₃)₃(OH)₂•6(H₂O) Environment: Amorphous analog of malachite. Weathered tremolitic rock that contains disseminated copper and iron sulfides. IMA Status: Approved IMA 1979 Locality: Carr Boyd mine, 100 km N of Kalgoorlie, WA, Australia. Link to MinDat.org Location Data. Name Origin: Named for George Herbert Payne (1912-1989), past chief of the mineral division, Western Australian Government Chemical Laboratories. Name Pronunciation: Georgeite + Pronunciation  

Georgeite Image

Images:

Georgeite Crystallography

Crystal System: Amorphous- No Crystals  

Physical Properties of Georgeite

Color: Light blue. Density: 2.55 Diaphaneity: Transparent to Subopaque Habit: Encrustations - Forms crust-like aggregates on matrix. Hardness: 1-2 - Between Talc and Gypsum Luster: Vitreous - Dull Streak: light blue  

Optical Properties of Georgeite

Gladstone-Dale: CI meas= -0.076 (Fair) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2325,KC= 0.2162
Ncalc = 1.55 Optical Data: Isotropic, n=1.593.  

Calculated Properties of Georgeite

Electron Density: Bulk Density (Electron Density)=2.49 gm/cc
note: Specific Gravity of Georgeite =2.55 gm/cc.
Fermion Index: Fermion Index = 0.0008267926
Boson Index = 0.9991732074 Photoelectric: PE_Georgeite = 21.50 barns/electron
U=PE_Georgeite x rElectron Density= 53.65 barns/cc.
Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Georgeite is Not Radioactive  

Georgeite Classification

Dana Class: 16a.03.03.01 (16a)Carbonates - Hydroxyl or Halogen   (16a.03)where (A B)2 (XO3) Zq   (16a.03.03)Dana Group  

16a.03.03.01 Georgeite Cu5(CO3)3(OH)4•6(H2O) None

Strunz Class: 05.BA.10 05 - CARBONATES (NITRATES)   05.B - Carbonates with additional anions, without H2O   05.BA -With Cu, Co, Ni, Zn, Mg, Mn  

05.BA.10 Nullaginite Ni2(CO3)(OH)2 P 2₁/m,P 2₁ Mono

 

05.BA.10 Georgeite Cu5(CO3)3(OH)4•6(H2O) None

 

05.BA.10 Malachite Cu2(CO3)(OH)2 P 2₁/a 2/m

 

05.BA.10 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 2₁/a 2/m

 

05.BA.10 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 2₁/a 2/m

 

05.BA.10 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri

 

05.BA.10 Pokrovskite Mg2(CO3)(OH)2•0.5(H2O) P 2₁/a 2/m

 

05.BA.10 Rosasite (Cu,Zn)2(CO3)(OH)2 P 2₁/a 2/m

 

05.BA.10 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 2₁/a 2/m

 

05.BA.10 Chukanovite! Fe2(CO3)(OH)2 P 2₁/a 2/m

 

Other Georgeite Information

References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) See Also: Links to other databases for Georgeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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