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Karibibite

Formula:
Fe
 
2
As
 
4
O
 
9
System:Orthorhombic
This page provides mineralogical data about Karibibite.

Classification of Karibibite

IMA status:Approved
Strunz 8th edition ID:4/J.08-10
Nickel-Strunz 10th (pending) edition ID:4.JA.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
Dana 8th edition ID:7.10.2.1

7 : MULTIPLE OXIDES
10 : AB4X9
Hey's CIM Ref.:23.18

23 : Arsenites
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Type Occurrence of Karibibite

Type Locality:Karibib District, Erongo Region, Namibia
Year of Discovery:1973

Crystallography of Karibibite

Crystal System:Orthorhombic
Cell Parameters:a = 27.91Å, b = 6.53Å, c = 7.2Å
Ratio:a:b:c = 4.274 : 1 : 1.103
Unit Cell Volume:V 1,312.22 ų (Calculated from Unit Cell)

Optical Data of Karibibite

Type:Biaxial (-)
RI values: nα = 1.960 nβ = 2.100 nγ = 2.100
Maximum Birefringence:δ = 0.140

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

Chemical Properties of Karibibite

Formula:
Fe
 
2
As
 
4
O
 
9
Essential elements:As, Fe, O
All elements listed in formula:As, Fe, O

Relationship of Karibibite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.JA.05Leiteite
Zn[As
 
2
O
 
4
]
4.JA.10Reinerite
Zn
 
3
(AsO
 
3
)
 
2
4.JA.20Kusachiite
CuBi
 
2
O
 
4
4.JA.20Schafarzikite
Fe
2+
 
Sb
3+
2
O
 
4
4.JA.20Trippkeite
Cu[As
 
2
O
 
4
]
4.JA.25Apuanite
Fe
2+
 
Fe
3+
4
Sb
3+
4
O
 
12
S
4.JA.30Versiliaite
Fe
 
2
Fe
 
4
Sb
 
6
O
 
16
S
4.JA.35Schneiderhöhnite
Fe
2+
 
Fe
3+
3
[As
 
5
O
 
13
]
4.JA.40Zimbabweite
(Na,K)
 
2
PbAs
 
4
(Ta,Nb,Ti)
 
4
O
 
18
4.JA.45Ludlockite
(Fe,Pb)As
 
2
O
 
6
4.JA.50Paulmooreite
Pb
 
2
[As
 
2
O
 
5
]
4.JA.55Stibivanite
Sb
 
2
VO
 
5
4.JA.60Chadwickite
(UO
 
2
)[HAsO
 
3
]
Related Minerals - Hey's Index Grouping:
23.2Nanlingite
CaMg
 
4
[F
 
2
|AsO
 
3
]
 
2
23.3Leiteite
Zn[As
 
2
O
 
4
]
23.5Kuznetsovite
(Hg-Hg)Hg
2+
 
[Cl|AsO
 
4
]
23.6Paulmooreite
Pb
 
2
[As
 
2
O
 
5
]
23.7Ecdemite
Pb
 
6
[As
 
2
O
 
7
|Cl
 
4
]
23.8Heliophyllite
Pb
 
3
AsO
 
4-n
Cl
 
2n+1
23.9Finnemanite
Pb
 
5
[Cl|(AsO
 
3
)
 
3
]
23.10Gebhardite
Pb
 
8
[O|Cl
 
6
|(As
 
2
O
 
5
)
 
2
]
23.11Zimbabweite
(Na,K)
 
2
PbAs
 
4
(Ta,Nb,Ti)
 
4
O
 
18
23.13Rouseite
Pb
 
2
Mn
2+
 
[AsO
 
3
]
 
2
· 2H
 
2
O
23.14Freedite
Pb
 
15
(Cu,Fe
2+
 
)
 
3
[O
 
7
|Cl
 
10
|(AsO
 
3
)
 
4
]
23.15Manganarsite
Mn
 
3
[(OH)
 
4
|As
 
2
O
 
4
]
23.17Armangite
Mn
2+
26
[CO
 
3
|(HAsO
 
3
)
 
4
|(AsO
 
3
)
 
14
]
23.19Schneiderhöhnite
Fe
2+
 
Fe
3+
3
[As
 
5
O
 
13
]
23.20Lazarenkoite
(Ca,Fe)FeAs
 
3
O
 
7
·3H
 
2
O
23.21Stenhuggarite
CaFeSbO(AsO
 
3
)
 
2
23.22Tomichite
(V,Fe)
 
4
Ti
 
3
AsO
 
13
OH

Other Names for Karibibite

Synonyms:
IMA1973-007
German names:
Karibibit
Spanish names:
Karibibita

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 Karibibite

Reference List:American Mineralogist (1974): 59: 382.

Internet Links for Karibibite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Karibibite in the Natural History Museum (London) online catalogue
  • Karibibite details from Handbook of Mineralogy (PDF)
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    Localities for Karibibite

    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.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Galiléia
    No reference listed
    Chile
     
    • Atacama Region
      • Copiapó Province
        • Tierra Amarilla
          • Pampa Larga district
    Arturo Molina collection (Jochen Schlüter ID)
    France
     
    • Limousin
      • Haute-Vienne
        • Nantiat
          • Vaulry
    Queneau Patrice collection
    Japan
     
    • Kyushu Island
      • Oita prefecture
    Minato et al (1973) Koubutsu-Gakkai-Kou'en-Youshi, 6.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azzer District
            • Aït Ahmane
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Khder
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Méchoui
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Oumlil
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Tamdrost
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Namibia
     
    • Erongo Region
    Lithos (1973) 6, 265-272
    Mineral and/or Locality
    Google
     
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