Pseudomalachite Mineral Data

General Pseudomalachite Information

Chemical Formula:

Cu5(PO4)2(OH)4

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

Empirical Formula:

Cu₅(PO₄)₂(OH)

IMA Status:

Valid Species (Pre-IMA) 1813

Locality:

Virneberg Mine, Rheinbreitbach, Westerwald, Rhineland-Palatinate, Germany. Link to MinDat.org Location Data.

Name Origin:

From the Greek, pseudo - "false" and malachite.

Name Pronunciation:

Pseudomalachite + Pronunciation

Synonym:

Dihydrite

Ehlite

ICSD 10418

Lunnite

PDF 36-408

Tagilite

Pseudomalachite Image

Images:

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/I_o): 4.49(1), 2.386(0.7), 2.443(0.6),

Physical Properties of Pseudomalachite

Color:

Blue green, Green, Dark green, Black green.

Optical Properties of Pseudomalachite

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

Electron Density:

Bulk Density (Electron Density)=3.75 gm/cc
note: Specific Gravity of Pseudomalachite =3.97 gm/cc.

Fermion Index:

Fermion Index = 0.0001320206
Boson Index = 0.9998679794

Photoelectric:

PE_{Pseudomalachite}= 27.53 barns/electron
U=PE_{Pseudomalachite} x rElectron Density= 103.32 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pseudomalachite is Not Radioactive

Pseudomalachite Classification

Dana Class:

41.04.03.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.04)where (A B)5 (XO4)2 Zq

(41.04.03)Dana Group

41.04.03.01 Pseudomalachite Cu5(PO4)2(OH)4 P 2₁/a 2/m

41.04.03.02 Reichenbachite Cu5(PO4)2(OH)4 P 2₁/a 2/m

41.04.03.03 Ludjibaite Cu5(PO4)2(OH)4 P1 1

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

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
16 - WWW-MINCRYST

Search for Pseudomalachite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Pseudomalachite :

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.

Ask about Pseudomalachite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Pseudomalachite

Cu5(PO4)2(OH)4
Dana No: 41.04.03.01 Strunz No: 08.BD.05
Locality:

Notes: