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Ludjibaite Mineral Data

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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 Environment: Environment: Rare mineral in the oxidized zone of some copper deposits.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Ludjiba mine, about 12 km southeast of Kambove, Katanga Province, Congo (Shaba Province, Zaire). Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Ludjibaite + Pronunciation Say LUDJIBAITE
Help on Synonym: Synonym: ICSD 100744
  PDF 46-1300

Ludjibaite Image

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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 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 Color: Color: Blue green.

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
Ncalc = 1.8

Calculated Properties of Ludjibaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.16 gm/cc
note: Specific Gravity of Ludjibaite =4.35 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001611273
Boson Index = 0.9998388727
Help on Photoelectric: Photoelectric: PELudjibaite = 24.87 barns/electron
U=PELudjibaite x rElectron Density= 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)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.04)where (A B)5 (XO4)2 Zq
  (41.04.03)Dana Group Pseudomalachite Cu5(PO4)2(OH)4 P 21/a 2/m Reichenbachite Cu5(PO4)2(OH)4 P 21/a 2/m Ludjibaite Cu5(PO4)2(OH)4 P1 1
Help on  Strunz Class: Strunz Class: 08.BD.25 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BD -With only medium-sized cations, (OH, etc.):RO4 = 2:1
08.BD.25 Ludjibaite Cu5(PO4)2(OH)4 P1 1

Other Ludjibaite Information

Help on See Also: See Also: Links to other databases for Ludjibaite :
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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Dana No: Strunz No: 08.BD.25