Ludjibaite Mineral Data + Say LUDJIBAITE


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General Ludjibaite Information

Help on Chemical  Formula: Chemical Formula: Cu5(PO4)2(OH)4
Help on Composition: Composition: Molecular Weight = 575.70 gm
   Copper      55.19 %  Cu   69.09 % CuO
   Phosphorus  10.76 %  P    24.66 % P2O5
   Hydrogen     0.70 %  H     6.26 % H2O
   Oxygen      33.35 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu5(PO4)2(OH)4
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 100744
  PDF 46-1300
 

Ludjibaite Image

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Ludjibaite

Comments: Coating of intense blue-green microcrystals and crystalline ludjibaite.
Location: Shituru, Shaba, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ludjibaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7572:1:1.4784
Help on Cell Dimensions: Cell Dimensions: a = 4.446, b = 5.871, c = 8.68, Z = 1; alpha = 103.9°, beta = 90.3°, gamma = 93.2° V = 219.59 Den(Calc)= 4.35
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): 4.46(1), 2.353(0.5), 2.462(0.5),
 

Physical Properties of Ludjibaite

Help on Cleavage: Cleavage: None
Help on Color: Color: Blue green.
Help on Diaphaniety: Diaphaniety: Translucent to Opaque
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: bluish white
 

Optical Properties of Ludjibaite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.017 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1869,KC= 0.1838
Help on Optical Data: Optical Data: Biaxial (+/-), a=1.786, g=1.84, bire=0.0540
 

Calculated Properties of Ludjibaite

Help on Electron Density: Electron Density:

relectron=4.16 gm/cc
note: rLudjibaite =4.35 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00016
Boson Index = 0.99984
Help on Photoelectric: Photoelectric:

PELudjibaite = 24.87 barns/electron
U=PELudjibaite x relectron= 103.34 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ludjibaite is Not Radioactive

 

Ludjibaite Classification

Help on  Dana Class: Dana Class: 41.4.3.3 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.4)where (A B)5 (XO4)2 Zq
  (41.4.3)Dana Group
 
41.4.3.1 Pseudomalachite Cu5(PO4)2(OH)4 P 21/a 2/m
 
41.4.3.2 Reichenbachite Cu5(PO4)2(OH)4 P 21/a 2/m
 
41.4.3.3 Ludjibaite Cu5(PO4)2(OH)4 P1 1
Help on  Strunz Class: Strunz Class: VII/B.11-10 VII - Phosphates, Arsenates and Vanadates
  VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds
  VII/B.11 - Pseudomalachite group, Ludjibaite - Reppiaite series
 
VII/B.11-10 Ludjibaite Cu5(PO4)2(OH)4 P1 1
 
VII/B.11-20 Pseudomalachite Cu5(PO4)2(OH)4 P 21/a 2/m
 
VII/B.11-30 Reichenbachite Cu5(PO4)2(OH)4 P 21/a 2/m
 
VII/B.11-40 Cornwallite Cu5(AsO4)2(OH)4 P 21/a 2/m
 
VII/B.11-50 Cornubite Cu5(AsO4)2(OH)4 P1 1
 
VII/B.11-60 Turanite Cu5(VO4)2(OH)4 P1 1
 
VII/B.11-65 Gatehouseite Mn5(PO4)2(OH)4 P 212121 2 2 2
 
VII/B.11-70 Arsenoclasite Mn5(AsO4)2(OH)4 P 212121 2 2 2
 
VII/B.11-80 Reppiaite Mn5[(V,As)O4]2(OH)4 C 2/m 2/m
 

Other Ludjibaite Information

Help on References: References: PHYS. PROP.(Bull.Miner.,Vol.107-111,1984-1988) OPTIC PROP.(Bull.Miner.,Vol.107-111,1984-1988)
Help on See Also: See Also: Links to other databases for Ludjibaite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 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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Ludjibaite

Cu5(PO4)2(OH)4
Dana No: 41.4.3.3 Strunz No: VII/B.11-10
Locality:

 

Notes:

 

 
   
 
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