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Karibibite

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Formula:
Fe3+3(As3+O2)4(As3+2O5)(OH)
Formerly given as Fe2As4O9.
Crystal System:
Orthorhombic
Name:
Named for the type locality.
A rare iron arsenite. So far, it always originated as a weathering product of löllingite.
Visually similar to ludlockite.
Compare also 'UM1971-02-AsO:Fe'.


The structure seems to have been solved just recently (Mugnaioli, 2016; Colombo et al., 2017). The mineral is unique in being the only arsenite with structurally different anions (chains and dimers simultaneously), and is a representative of a small class of diarsenates(III) (or diarsenites).

Structure details:
(1) Fe3+O6 octahedra form bands along a; the bands are made of ribbons built of 3 edge-sharing octahedra, and the ribbons are joined via apices to give a kinked bond along a;
(2) the above bands are surrounded by (a) chains comprising AsO3 trigonal pyramids, and (b) As2O5 dimers;
(3) the dimers are connected by the O(3) atoms, thus giving zig-zag chains of the (As3+O2)-n stoichiometry.


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Classification of KaribibiteHide

Approved
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
7.10.2.1

7 : MULTIPLE OXIDES
10 : AB4X9
23.18

23 : Arsenites

Pronounciation of KaribibiteHide

Pronounciation:
PlayRecorded byCountry
Debbie WoolfUnited Kingdom

Optical Data of KaribibiteHide

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

Formula:
Fe3+3(As3+O2)4(As3+2O5)(OH)

Formerly given as Fe2As4O9.
IMA Formula:
Fe3+2As3+4O9

Crystallography of KaribibiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 7.2558(3) Å, b = 27.992(1) Å, c = 6.5243(3) Å
Ratio:
a:b:c = 0.259 : 1 : 0.233
Unit Cell V:
1325.1 ų
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.384 (100)
3.176 (80)
2.802 (80)
3.088 (70)
3.496 (50)
2.672 (45)
6.35 (40)

Type Occurrence of KaribibiteHide

Synonyms of KaribibiteHide

Other Language Names for KaribibiteHide

German:Karibibit
Spanish:Karibibita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Schneiderhöhnite19 photos of Karibibite associated with Schneiderhöhnite on mindat.org.
Löllingite18 photos of Karibibite associated with Löllingite on mindat.org.
Yukonite5 photos of Karibibite associated with Yukonite on mindat.org.
Pharmacosiderite5 photos of Karibibite associated with Pharmacosiderite on mindat.org.
Quartz4 photos of Karibibite associated with Quartz on mindat.org.
Scorodite2 photos of Karibibite associated with Scorodite on mindat.org.
Fluorite2 photos of Karibibite associated with Fluorite on mindat.org.
Hematite1 photo of Karibibite associated with Hematite on mindat.org.
β-Roselite1 photo of Karibibite associated with β-Roselite on mindat.org.
Skutterudite1 photo of Karibibite associated with Skutterudite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JA.05LeiteiteZn(As2O4)Mon. 2/m : P21/b
4.JA.10ReineriteZn3(AsO3)2Orth.
4.JA.20KusachiiteCuBi2O4Tet.
4.JA.20SchafarzikiteFe2+Sb3+2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.20TrippkeiteCu[As2O4]Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.25ApuaniteFe2+Fe3+4Sb3+4O12STet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.30VersiliaiteFe2Fe4Sb6O16SOrth.
4.JA.35SchneiderhöhniteFe2+Fe3+3[As5O13]Tric. 1 : P1
4.JA.40Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth.
4.JA.45LudlockitePbFe3+4As3+10O22Tric. 1 : P1
4.JA.50PaulmooreitePb2[As2O5]Mon. 2/m : P21/b
4.JA.55StibivaniteSb2VO5Orth.
4.JA.60Chadwickite(UO2)[HAsO3]Tet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

23.2NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
23.3LeiteiteZn(As2O4)Mon. 2/m : P21/b
23.5Kuznetsovite(Hg+2)Hg2+(AsO4)ClIso. 2 3 : P21 3
23.6PaulmooreitePb2[As2O5]Mon. 2/m : P21/b
23.7EcdemitePb6Cl4(As2O7)Tet.
23.8HeliophyllitePb6Cl4(As2O7)Orth.
23.9FinnemanitePb5(AsO3)3ClHex. 6/m : P63/m
23.10GebharditePb8(As2O5)2OCl6Mon.
23.11Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth.
23.13RouseitePb2Mn2+[AsO3]2 · 2H2OTric.
23.14FreediteCu+Pb8(AsO3)2O3Cl5Mon. 2/m : B2/m
23.15ManganarsiteMn3(As2O4)(OH)4
23.17ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
23.19SchneiderhöhniteFe2+Fe3+3[As5O13]Tric. 1 : P1
23.20Lazarenkoite(Ca,Fe2+)Fe3+As3+3O7 · 3H2OOrth.
23.21StenhuggariteCaFeSb(AsO3)2OTet.
23.22Tomichite(V,Fe)4Ti3AsO13(OH)Mon.

Other InformationHide

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

References for KaribibiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
von Knorring, O., T.G. Sahama, and P. Rehtijärvi (1973): Karibibite, a new FeAs mineral from South West Africa. Lithos: 6: 265–271.
American Mineralogist (1974): 59: 382.
Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. http://www.handbookofmineralogy.org/ (2016)
Mugnaioli, E. (2016): Structure Determination of Karibibite by EDT: New Perspectives for Mineralogy and Material Sciences. MISCA2016, MS6-OP3.
Colombo, F., Mugnaioli, E., Vallcorba, O., Garcia, A., Goñi, A., Rius, J. (2017): Crystal structure determination of karibibite, an Fe3+ arsenite, using electron diffraction tomography. Mineralogical Magazine, 81, 1191-1202.

Internet Links for KaribibiteHide

Localities for KaribibiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
    • Divino das Laranjeiras
Physics Dep. - UFMG - Brazil
Sergio Varvello collection
    • Galiléia
      • Sapucaia do Norte
Luis Menezes
Atencio D, Carvalho F M S, Matioli P A (2004) Coutinhoite, a new thorium uranyl silicate hydrate, from Urucum Mine, Galiléia, Minas Gerais, Brazil. American Mineralogist 89, 721-724
Chile
 
  • Atacama Region
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga district
Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Nash, B. P., Dini, M., & Jenkins, R. A. (2013). Joteite, Ca2CuAl [AsO4][AsO3 (OH)] 2 (OH) 2· 5H2O, a new arsenate with a sheet structure and unconnected acid arsenate groups. Mineralogical Magazine, 77(6), 2811-2823.; Kampf, A. R., Mills, S. J., Nash, B. P., Dini, M., & Molina Donoso, A. A. (2015). Tapiaite, Ca5Al2 (AsO4) 4 (OH) 4· 12H2O, a new mineral from the Jote mine, Tierra Amarilla, Chile. Mineralogical Magazine, 79(2), 345-354.
Arturo Molina collection (Jochen Schlüter ID)
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Nantiat
        • Vaulry
          • Vaulry Mines
Queneau Patrice collection
Japan
 
  • Kyushu Region
    • Oita prefecture
      • Saiki City
Minato et al (1973) Koubutsu-Gakkai-Kou'en-Youshi, 6.
Uehara, S., et al. (2014) Minerals from Kyushu and Yamaguchi. (Fukuoka Mineral Club, 355 pages)
Masayuki Ohnishi, Norimasa Shimobayashi, Shigetomo Kishi, Mitsuo Tanabe, Shoichi Kobayashi (2013) Talmessite from the Uriya deposit at the Kiura mining area, Oita Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 108, No. 2 (April), 116-120.
Kazakhstan
 
  • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
Voloshin A.V., Pakhomovsky Ya.A., Bakhchisaraitsev A.Yu. (1989) On karibibite and schneiderhohnite from pegmatites of Eastern Kazakhstan, - Novye Dannye o Mineralakh, Moscow, Nauka, 36, pp.129-135 (in Rus.)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azzer District (Bou Azer 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 (TL)
 
  • Erongo Region
Lithos (1973) 6, 265-272
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Mineralogical Museum Universität Hamburg collection (SEM-EDS- and PXRD-analysed) (Jochen Schlüter pers. commm. to Uwe Kolitsch Sept. 2017)
Norway
 
  • Vestfold
    • Larvik
      • Tvedalen
        • Tuften (Tuften 1 Quarry; Tuften 2 Quarry)
Larsen, A. O. (2013): Contributions to the mineralogy of the syenite pegmatites in the Larvik Plutonic Complex. Norsk Bergverksmuseet Skrift 50, 101-109.
Spain
 
  • Andalusia
    • Córdoba
      • Belalcázar
Calvo, M. (2015). Minerales y Minas de España. Vol VII. Fosfatos, Arseniatos y Vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 479 págs.; Rewitzer C., Hochleitner R., Fehr T., Utrera C., Karibibite, schneiderhöhnite, tooeleite and other uncommon secondary minerals in the Nuestra Señora de las Alcantarillas mine, Belalcázar, Córdoba, Spain; MineralUp (Revista de Minerales) No.1 Oct. 2016 Page 9-39
Mineral and/or Locality  
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