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Reichenbachite

Formula:
Cu
 
5
[OH)
 
2
|PO
 
4
]
 
2
System:MonoclinicColour:Dark green
Lustre:VitreousHardness:
Name:Named after its discovery locality.
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, Bensheim, Odenwald, Hesse, Germany
Year of Discovery:1987

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
[OH)
 
2
|PO
 
4
]
 
2
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.05Cornubite
Cu
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
8.BD.05Cornwallite
Cu
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
8.BD.05Ludjibaite
Cu
 
5
[(OH)
 
2
|PO
 
4
]
 
2
8.BD.05Pseudomalachite
Cu
 
5
[(OH)
 
2
|PO
 
4
]
 
2
8.BD.10Arsenoclasite
Mn
2+
5
[(OH)
 
2
|AsO
 
4
]
 
2
8.BD.10Gatehouseite
Mn
2+
5
[(OH)
 
2
|PO
 
4
]
 
2
8.BD.15Parwelite
(Mn,Mg,Ca)
 
5
Sb(As,Si)
 
2
O
 
12
8.BD.20Reppiaite
Mn
2+
5
[(OH)
 
2
|VO
 
4
]
 
2
Related Minerals - Hey's Index Grouping:
19.2.1Libethenite
Cu
 
2
[OH|PO
 
4
]
19.2.2Cornetite
Cu
 
3
[(OH)
 
3
|PO
 
4
]
19.2.4Ludjibaite
Cu
 
5
[(OH)
 
2
|PO
 
4
]
 
2
19.2.5Pseudomalachite
Cu
 
5
[(OH)
 
2
|PO
 
4
]
 
2
19.2.6Nissonite
Cu
 
2
Mg
 
2
[OH|PO
 
4
]
 
2
· 5H
 
2
O
19.2.7Zapatalite
Cu
 
3
Al
 
4
[(OH)
 
3
|PO
 
4
]
 
3
· 4H
 
2
O
19.2.8Turquoise
Cu(Al,Fe
3+
 
)
 
6
[(OH)
 
4
|(PO
 
4
)
 
2
]
 
2
· 4H
 
2
O
19.2.9Sieleckiite
Cu
 
3
Al
 
4
[(OH)
 
6
|PO
 
4
]
 
2
· 2H
 
2
O
19.2.10Planerite
Al
 
6
[(OH)
 
4
|HPO
 
4
|PO
 
4
]
 
2
· 4 H
 
2
O
19.2.11Hentschelite
CuFe
3+
2
[OH|PO
 
4
]
 
2
19.2.13Chalcosiderite
Cu(Fe
3+
 
,Al)
 
6
[(OH)
 
4
|(PO
 
4
)
 
2
]
 
2
· 4H
 
2
O
19.2.14Phosphofibrite
KCuFe
3+
15
(PO
 
4
]
 
12
(OH)
 
12
· 12H
 
2
O ?

Other Names for Reichenbachite

Synonyms:
IMA1985-044
German names:
Reichenbachit
Spanish names:
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.

Articles/Blogs about Reichenbachite

Internet Links for Reichenbachite

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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.
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    (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
      • Alligator Rivers Region
        • Rum Jungle
    Museum Victoria collection
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Katanga Copper Crescent
        • Southern area
          • Lubumbashi (Elizabethville)
            • Kipushi
    No reference listed
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Gengenbach
          • Haigerach valley
    Wittern: "Mineralfundorte in Deutschland", 2001
    • Hesse
      • Odenwald
        • Bensheim
          • Gadernheim
    Am Min 79:764-765.
          • Reichenbach
            • Borstein
    P Haas collection (specimen no. 72-170)
    No reference listed
            • Hohenstein
    Lapis 25(2), 13-30 (2000)
    No reference listed
      • Taunus Mts
        • Emmershausen
    www.haldengraeber.de/Homepage/Fundstellen/Deutschland/Taunus/Silbergaut/Silbergaut.html
    • Rhineland-Palatinate
      • Siegerland
        • Gebhardshain
          • Kausen
    Wittern: "Mineralfundstellen in Deutschland", 2001
    • Saxony
      • Vogtland
        • Falkenstein
          • Bergen
    T. Witzke (1994) Lapis 19(10), 36-39
    Portugal
     
    • Évora District
      • Évora
      • Vila Viçosa
    Braithwaite, R. S. W. and Ryback, G. (1994): Reichenbachite from Cornwall and Portugal. Mineral. Mag., 58, 449-454.
    Slovakia
     
    • Banská Bystrica Region
      • Western Slovenské Rudohorie Mts
        • Ľubietová (Libetbánya; Libethen) ore belt
    No reference listed
    South Africa
     
    • Northern Cape Province
      • Namaqualand
        • Okiep Copper District
          • Springbok
    Leon Hupperichs collection
    UK
     
    • England
      • Cornwall
        • Callington District
          • Gunnislake Area
    Braithwaite, R. S. W. and Ryback, G. (1994): Reichenbachite from Cornwall and Portugal. Mineral. Mag., 58, 449-454; [R.Tayler pers. comm.]
    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
    Google
     
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