Ceruleite Mineral Data

Ceruleite Mineral Data
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General Ceruleite Information

Help on Chemical Formula: Chemical Formula: Cu2Al7(AsO4)4(OH)13•12(H2O)
Help on Composition: Composition: Molecular Weight = 1,308.92 gm
   Aluminum  14.43 %  Al   27.26 % Al2O3
   Copper     9.71 %  Cu   12.15 % CuO
   Arsenic   22.90 %  As   35.12 % As2O5
   Hydrogen   2.85 %  H    25.46 % H2O
   Oxygen    50.12 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2Al7(AsO4)4(OH)13•12(H2O)
Help on Environment: Environment: In the oxidized zone of arsenic-rich polymetallic mineral deposits; a post-mine product.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1900
Help on Locality: Locality: Emma Louisa gold mine, Guanaco district, about 100 km east-northeast of Taltal, Antofagasta, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from cerulean, for the sky-blue color of the mineral.
Help on Name Pronunciation: Name Pronunciation: Ceruleite + Pronunciation Say CERULEITE
 

Ceruleite Image

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Ceruleite

Comments: Blue globular clusters of ceruleite.
Location: Wheal Gorland, Gwennap, Cornwall, England. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Ceruleite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9776:1:0.5065
Help on Cell Dimensions: Cell Dimensions: a = 14.359, b = 14.687, c = 7.44, Z = 2; alpha = 96.06°, beta = 93.19°, gamma = 91.63° V = 1,557.21 Den(Calc)= 2.79
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.65(1), 7.296(0.75), 5.926(0.7),
 

Physical Properties of Ceruleite

Help on Color: Color: Blue, Deep blue.
Help on Density: Density: 2.7
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Streak: Streak: bluish white
 

Optical Properties of Ceruleite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2151,KPDmeas= 0.2222,KC= 0.2206
Ncalc = 1.6 - 1.62
Help on Optical Data: Optical Data: Biaxial (?), b=1.6
 

Calculated Properties of Ceruleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.67 gm/cc
note: Specific Gravity of Ceruleite =2.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0002448298
Boson Index = 0.9997551702
Help on Photoelectric: Photoelectric: PECeruleite = 19.68 barns/electron
U=PECeruleite x rElectron Density= 52.44 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ceruleite is Not Radioactive
 

Ceruleite Classification
Help on Dana Class: Dana Class: 42.13.06.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.13)Dana Type
  (42.13.06)Dana Group
 
42.13.06.01 Ceruleite Cu2Al7(AsO4)4(OH)13•12(H2O) P1 1
Help on Strunz Class: Strunz Class: 08.DE.25 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DE -With only medium-sized cations, (OH, etc.):RO4 = 3:1
 
08.DE.25 Ceruleite Cu2Al7(AsO4)4(OH)13•12(H2O) P1 1
 

Other Ceruleite Information
Help on References: References: NAME( AntBidBlaNic4) 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 Ceruleite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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

Ceruleite

Cu2Al7(AsO4)4(OH)13•12(H2O)
Dana No: 42.13.06.01 Strunz No: 08.DE.25
Locality:

 

Notes: