Ceruleite Mineral Data + Say CERULEITE


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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 IMA Status: IMA Status: Valid Species (Pre-IMA) 1900
Help on Locality: Locality: Link to MinDat.org Location Data.
 

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
Help on Optical Data: Optical Data: Biaxial (?), b=1.6
 

Calculated Properties of Ceruleite

Help on Electron Density: Electron Density:

relectron=2.67 gm/cc
note: rCeruleite =2.70 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00024
Boson Index = 0.99976
Help on Photoelectric: Photoelectric:

PECeruleite = 19.68 barns/electron
U=PECeruleite x relectron= 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: 42.13.6.1 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.13)Dana Type
  (42.13.6)Dana Group
 
42.13.6.1 Ceruleite Cu2Al7(AsO4)4(OH)13·12(H2O) P1 1
Help on  Strunz Class: Strunz Class: VII/D.20-20 VII - Phosphates, Arsenates and Vanadates
  VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe
  VII/D.20 - Zapatalite - Chalcophyllite series
 
VII/D.20-10 Zapatalite Cu3Al4(PO4)3(OH)9·4(H2O) Unk Tetra
 
VII/D.20-20 Ceruleite Cu2Al7(AsO4)4(OH)13·12(H2O) P1 1
 
VII/D.20-30 Parnauite Cu9(AsO4)2(SO4)(OH)10·7(H2O) P 2122 2 2 2
 
VII/D.20-35 Leogangite! Cu10(AsO4)4(SO4)(OH)6·8(H2O) C 2/c 2/m
 
VII/D.20-40 Liroconite Cu2Al(AsO4)(OH)4·4(H2O) I2/a 2/m
 
VII/D.20-50 Chalcophyllite Cu18Al2(AsO4)3(SO4)3(OH)27·33(H2O) R 3m 3 2/m
 

Other Ceruleite Information

Help on References: References: 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 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Ceruleite

Cu2Al7(AsO4)4(OH)13·12(H2O)
Dana No: 42.13.6.1 Strunz No: VII/D.20-20
Locality:

 

Notes:

 

 
   
 
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