Reichenbachite Mineral Data

General Reichenbachite Information

Chemical Formula: Cu++5(PO4)2(OH)4 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 Empirical Formula: Cu₅(PO₄)₂(OH)₄ Environment: Silicified barite vein. Trimorphous with pseudomalachite and ludjibaite. IMA Status: Approved IMA 1984 Locality: Reichenbach, Odenwald, Germany. Link to MinDat.org Location Data. Name Origin: Named for the locality. Name Pronunciation: Reichenbachite + Pronunciation Synonym: ICSD 100019   PDF 40-502  

Reichenbachite Image

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Reichenbachite Crystallography

X Ray Diffraction: By Intensity(I/I_o): 2.41(1), 4.47(1), 3.132(0.3), Crystal Structure:

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Anderson J B , Shoemaker G L , Kostiner E , Ruszala F A , American Mineralogist , 62 (1977) p.115-121, The crystal structure of synthetic Cu5(PO4)2(OH)4, a polymorph of, pseudomalachite

 

Physical Properties of Reichenbachite

Color: Dark green.  

Optical Properties of Reichenbachite

Gladstone-Dale: CI meas= -0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.035 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1902,KPDmeas= 0.1902,KC= 0.1838
Ncalc = 1.8  

Calculated Properties of Reichenbachite

Electron Density: Bulk Density (Electron Density)=4.16 gm/cc
note: Specific Gravity of Reichenbachite =4.35 gm/cc.
Fermion Index: Fermion Index = 0.0001611273
Boson Index = 0.9998388727 Photoelectric: PE_{Reichenbachite} = 24.87 barns/electron
U=PE_{Reichenbachite} x rElectron Density= 103.34 barns/cc.
Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Reichenbachite is Not Radioactive  

Reichenbachite Classification

Dana Class: 41.04.03.02 (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 Reichenbachite Information

See Also: Links to other databases for Reichenbachite :
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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