Choloalite Mineral Data

Choloalite Mineral Data
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General Choloalite Information

Help on Chemical Formula: Chemical Formula: CuPb(Te++++O3)2
Help on Composition: Composition: Molecular Weight = 639.96 gm
   Copper      9.93 %  Cu   12.43 % CuO
   Tellurium  39.88 %  Te   49.88 % TeO2
   Hydrogen    0.32 %  H     2.82 % H2O
   Lead       32.38 %  Pb   34.88 % PbO
   Oxygen     17.50 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuPb(TeO3)2•(H2O)
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Bambollita mine, Moctezuma, Sonora, Mexic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Nahua "choloa", evasive, in allusion to the fact that the mineral escaped detection in the mine for many years.
 

Choloalite Image

Click Here for Larger Choloalite Image in a New Browser Window Images:
Click Here for Larger Choloalite Image

Choloalite   Hessite

Comments: Sparse green crusts of choloalite with metallic hessite.
Location: McAlpine Mine, Tuolumne County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Choloalite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 12.519, Z = 12; V = 1,962.05 Den(Calc)= 6.50
Help on Crystal System: Crystal System: IsometricSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.036(1), 3.343(0.6), 7.223(0.5),
Click Here for Large Choloalite Structure Window Crystal Structure:

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Lam A E , Groat L A , Grice J D , Ercit T S , The Canadian Mineralogist , 37 (1999) p.721-729, The crystal structure of choloalite

 

Physical Properties of Choloalite

Help on Cleavage: Cleavage: None
Help on Color: Color: Dark green.
Help on Density: Density: 6.4
Help on Fracture: Fracture: Brittle - Irregular - Very brittle fracture producing irregular fragments
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: green
 

Optical Properties of Choloalite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.084 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.098 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.16,KPDmeas= 0.1625,KC= 0.1773
Ncalc = 2.13 - 2.15
Help on Optical Data: Optical Data: Isotropic, n=2.04.
 

Calculated Properties of Choloalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.46 gm/cc
note: Specific Gravity of Choloalite =6.40 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.1
Boson Index = 0.9
Help on Photoelectric: Photoelectric: PECholoalite = 730.87 barns/electron
U=PECholoalite x rElectron Density=3,990.80 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Choloalite is Not Radioactive
 

Choloalite Classification
Help on Dana Class: Dana Class: 34.02.04.01 (34)Selenites - Tellurites - Sulfites
  (34.02)as A++ XO3 · x(H2O)
  (34.02.04)Dana Group
 
34.02.04.01 Choloalite CuPb(TeO3)2 Unk Cubic
Help on Strunz Class: Strunz Class: 04.JK.45 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JK -Tellurites without additional anions, without H2O
 
04.JK.45 Choloalite CuPb(TeO3)2 Unk Cubic
 

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

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Print or Cut-and-Paste your Choloalite Specimen Label here :

Choloalite

CuPb(Te++++O3)2
Dana No: 34.02.04.01 Strunz No: 04.JK.45
Locality:

 

Notes: