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Pseudomalachite Mineral Data

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General Pseudomalachite Information

Help on Chemical  Formula: Chemical Formula: Cu5(PO4)2(OH)4
Help on Composition: Composition: Molecular Weight = 524.68 gm
   Copper      60.56 %  Cu   75.80 % CuO
   Phosphorus  11.81 %  P    27.05 % P2O5
   Hydrogen     0.19 %  H     1.72 % H2O
   Oxygen      27.44 %  O
              ______        ______ 
              100.00 %      104.57 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu5(PO4)2(OH)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1813
Help on Locality: Locality: Virneberg Mine, Rheinbreitbach, Westerwald, Rhineland-Palatinate, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, pseudo - "false" and malachite.
Help on Name Pronunciation: Name Pronunciation: Pseudomalachite + Pronunciation Say PSEUDOMALACHITE
Help on Synonym: Synonym: Dihydrite
  ICSD 10418
  PDF 36-408

Pseudomalachite Image

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  Pseudomalachite   Halloysite

Comments: Deep green pseudomalachite crystals on cuprous halloysite.
Location: Black Pine Mine, Philipsburg, Granite Co., Montana, USA. Scale: Crystal size 1-2 mm.
© John Veevaert

Pseudomalachite Crystallography

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.49(1), 2.386(0.7), 2.443(0.6),

Physical Properties of Pseudomalachite

Help on Color: Color: Blue green, Green, Dark green, Black green.

Optical Properties of Pseudomalachite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.146 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.152 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2122,KPDmeas= 0.2111,KC= 0.1842
Ncalc = 1.66 - 1.8

Calculated Properties of Pseudomalachite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.75 gm/cc
note: Specific Gravity of Pseudomalachite =3.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001320206
Boson Index = 0.9998679794
Help on Photoelectric: Photoelectric: PEPseudomalachite = 27.53 barns/electron
U=PEPseudomalachite x rElectron Density= 103.32 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pseudomalachite is Not Radioactive

Pseudomalachite 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.05 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.05 Cornwallite Cu5(AsO4)2(OH)4 P 21/a 2/m
08.BD.05 Pseudomalachite Cu5(PO4)2(OH)4 P 21/a 2/m
08.BD.05 Reichenbachite Cu5(PO4)2(OH)4 P 21/a 2/m

Other Pseudomalachite Information

Help on See Also: See Also: Links to other databases for Pseudomalachite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 08.BD.05