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Reichenbachite

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Formula:
Cu
 
5
(PO
 
4
)
 
2
(OH)
 
4
System:MonoclinicColour:Dark green
Lustre:VitreousHardness:
Name:
Named after its discovery locality.
Polymorph of:Ludjibaite, Pseudomalachite
This page provides mineralogical data about Reichenbachite.

Classification of Reichenbachite

IMA status:Approved 1985
Strunz 8th edition ID:7/B.11-30
Nickel-Strunz 10th (pending) edition ID:8.BD.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
D : With only medium-sized cations, (OH, etc.):RO4= 2:1
Dana 8th edition ID:41.4.3.2

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq
Hey's CIM Ref.:19.2.3

19 : Phosphates
2 : Phosphates of Cu
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Type Occurrence of Reichenbachite

Type Locality:Point 8.0, Borstein, Reichenbach, Lautertal (Odenwald), Odenwald, Hesse, Germany
Year of Discovery:1985

Physical Properties of Reichenbachite

Lustre:Vitreous
Colour:Dark green
Hardness (Mohs):

Crystallography of Reichenbachite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 9.186(2) Å, b = 10.684(2) Å, c = 4.461(2) Å
β = 92.31(1)°
Ratio:a:b:c = 0.86 : 1 : 0.418
Unit Cell Volume:V 437.46 ų (Calculated from Unit Cell)
Z:2
Morphology:Lancet-shaped crystals.
Comment:SG P21/a

Optical Data of Reichenbachite

Type:Biaxial (-)
RI values: nα = 1.782 nβ = 1.833 nγ = 1.867
2V:Measured: 76° , Calculated: 76°
Maximum Birefringence:δ = 0.085

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:extreme

Chemical Properties of Reichenbachite

Formula:
Cu
 
5
(PO
 
4
)
 
2
(OH)
 
4
Simplified for copy/paste:Cu5(PO4)2(OH)4
Essential elements:Cu, H, O, P
All elements listed in formula:Cu, H, O, P

Relationship of Reichenbachite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BD.05Cornwallite
Cu
 
5
(AsO
 
4
)
 
2
(OH)
 
4
8.BD.05Pseudomalachite
Cu
 
5
(PO
 
4
)
 
2
(OH)
 
4
8.BD.10Arsenoclasite
Mn
2+
5
(AsO
 
4
)
 
2
(OH)
 
4
8.BD.10Gatehouseite
Mn
2+
5
(PO
 
4
)
 
2
(OH)
 
4
8.BD.15Parwelite
Mn
 
10
Sb
 
2
As
 
2
Si
 
2
O
 
24
8.BD.20Reppiaite
Mn
2+
5
(VO
 
4
)
 
2
(OH)
 
4
8.BD.25Ludjibaite
Cu
 
5
(PO
 
4
)
 
2
(OH)
 
4
8.BD.30Cornubite
Cu
 
5
(AsO
 
4
)
 
2
(OH)
 
4
Related Minerals - Hey's Index Grouping:

- +
19.2.1Libethenite
Cu
 
2
(PO
 
4
)(OH)
19.2.2Cornetite
Cu
 
3
(PO
 
4
)(OH)
 
3
19.2.4Ludjibaite
Cu
 
5
(PO
 
4
)
 
2
(OH)
 
4
19.2.5Pseudomalachite
Cu
 
5
(PO
 
4
)
 
2
(OH)
 
4
19.2.6Nissonite
Cu
 
2
Mg
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 5H
 
2
O
19.2.7Zapatalite
Cu
 
3
Al
 
4
(PO
 
4
)
 
3
(OH)
 
9
· 4H
 
2
O
19.2.8Turquoise
Cu(Al,Fe
3+
 
)
 
6
(PO
 
4
)
 
4
(OH)
 
8
· 4H
 
2
O
19.2.9Sieleckiite
Cu
 
3
Al
 
4
(PO
 
4
)
 
2
(OH)
 
12
· 2H
 
2
O
19.2.10Planerite
Al
 
6
(PO
 
4
)
 
2
(HPO
 
4
)
 
2
(OH)
 
8
· 4 H
 
2
O
19.2.11Hentschelite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
19.2.13Chalcosiderite
Cu(Fe
3+
 
,Al)
 
6
(PO
 
4
)
 
4
(OH)
 
8
· 4H
 
2
O
19.2.14Phosphofibrite
K
 
<0.5
(Fe
3+
 
,Cu)
 
8
(PO
 
4
)
 
6
(OH)
 
7
· 7H
 
2
O

Other Names for Reichenbachite

Synonyms:
IMA1985-044
Other Languages:
German:Reichenbachit
Spanish:Reichenbachita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Reichenbachite

Reference List:

- +
American Mineralogist (1977): 62: 115-121.

Sieber, N.H.W., Tillmanns, E. and Medenbach, O. (1987) Hentschelite, CuFe2(PO4)2(OH)2, a new member of the lazulite group, and reichenbachite, Cu5(PO4)2(OH)4, a polymorph of pseudomalachite, two new copper phosphate minerals from Reichenbach, Germany. American Mineralogist 72, 404-408.

Neues Jahrbuch für Mineralogie, Monatshefte (1991): 281.

Braithwaite, R. S. W. and Ryback, G. (1994): Reichenbachite from Cornwall and Portugal. Mineral. Mag., 58, 449-454.

Internet Links for Reichenbachite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Reichenbachite details from Handbook of Mineralogy (PDF)
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  • Localities for Reichenbachite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Northern Territory
      • Coomalie Shire
        • Batchelor
          • Rum Jungle
    Museum Victoria collection
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Kipushi
    Frost, R. L., Reddy, B. J., Palmer, S. J., & Keeffe, E. C. (2011). Structure of selected basic zinc/copper (II) phosphate minerals based upon near-infrared spectroscopy–Implications for hydrogen bonding. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 78(3), 996-1003.
    France
     
    • Auvergne
      • Allier
        • Ébreuil
          • Échassières
    Patrice Queneau Collection
    Kolitsch, U., Gröbner, J. & Brandstätter, F. (2009): Neufunde von Les Montmins, Allier, Frankreich. Lapis 34 (11), 24-32; 54 (in German).
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Gengenbach
          • Haigerach valley
    Wittern: "Mineralfundorte in Deutschland", 2001
    • Hesse
      • Odenwald
        • Lautertal (Odenwald)
          • Gadernheim
    Am Min 79:764-765.
          • Reichenbach
            • Borstein
    Collection of Steffen Michalski, ex-collection and collected by Klaus PETITJEAN
    Collection of Steffen Michalski, ex-collection and collected by Klaus PETITJEAN
    P Haas collection (specimen no. 72-170)
    Collection of Steffen Michalski, ex-collection and collected by Klaus PETITJEAN
    Sieber, N.H.W., Tillmanns, E. and Medenbach, O. (1987) Hentschelite, CuFe2(PO4)2(OH)2, a new member of the lazulite group, and reichenbachite, Cu5(PO4)2(OH)4, a polymorph of pseudomalachite, two new copper phosphate minerals from Reichenbach, Germany. American Mineralogist 72, 404-408.
            • Hohenstein
    Lapis 25(2), 13-30 (2000)
    Collection of Steffen Michalski, ex-collection and collected by Klaus PETITJEAN
    No reference listed
            • Teufelsstein
    Collection of Steffen Michalski, ex-collection and collected by Klaus PETITJEAN
      • Taunus
        • Emmershausen
    www.haldengraeber.de/Homepage/Fundstellen/Deutschland/Taunus/Silbergaut/Silbergaut.html
    • Rhineland-Palatinate
      • Siegerland
        • Gebhardshain
          • Kausen
    Wittern: "Mineralfundstellen in Deutschland", 2001
    • Saxony
      • Vogtland
        • Zobes-Bergen District
          • Bergen U deposit
            • Bergen
    T. Witzke (1994) Lapis 19(10), 36-39
    Portugal
     
    • Évora District
      • Évora
        • Nossa Senhora da Tourega
      • Vila Viçosa
        • Conceição
    Braithwaite, R. S. W. and Ryback, G. (1994): Reichenbachite from Cornwall and Portugal. Mineral. Mag., 58, 449-454.
    Slovakia
     
    • Banská Bystrica Region
      • Banská Bystrica Co.
        • Ľubietová (Libetbánya; Libethen)
    Hyršl, J. (1991): Three polymorphs of Cu5(PO4)2(OH) from Ľubietová, Czechoslovakia. N. Jb. Miner. Mh., 6, 281-287.
    South Africa
     
    • Northern Cape Province
      • Namakwa District (Namaqualand)
        • Okiep Copper District
          • Springbok
    Leon Hupperichs collection
    Spain
     
    • Extremadura
      • Badajoz
        • Cheles
    Cesar Menor-Salván
    UK
     
    • England
      • Cornwall
        • Callington District
          • Calstock
            • Gunnislake
              • Clitters United Mines
    Braithwaite, R.S.W., and Ryback, G. (1994): Mineralogical Magazine 58, 449-454; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
    USA
     
    • Arizona
      • Yavapai Co.
        • Bradshaw Mts (Bradshaw Range)
          • Agua Fria District
            • Mayer
    Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 7.
    Mineral and/or Locality  
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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