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Carboirite

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Formula:
FeAl2(GeO4)O(OH)2
Colour:
Green
Lustre:
Vitreous
Hardness:
6
Crystal System:
Triclinic
Name:
Named after the type locality, Carboire, Ariège, Midi-Pyrénées, France.
Carboirite-Chloritoid Series.


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Classification of CarboiriteHide

IMA status:
Approved
Strunz 8th ed.:
4/C.22-10
Nickel-Strunz 10th (pending) ed.:
9.J0.05

9 : SILICATES (Germanates)
J : Germanates
0 :
Dana 8th ed.:
52.3.3.4

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
3 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Hey's CIM Ref.:
7.11.17

7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb

Physical Properties of CarboiriteHide

Lustre:
Vitreous
Colour:
Green
Hardness:
6 on Mohs scale

Optical Data of CarboiriteHide

Type:
Biaxial (+)
RI values:
nα = 1.731 nβ = 1.735 nγ = 1.740
2V:
Measured: 65° to 70°
Max Birefringence:
δ = 0.009
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of CarboiriteHide

Formula:
FeAl2(GeO4)O(OH)2
IMA Formula:
Fe2+Al2GeO5(OH)2
Elements listed:
Al, Fe, Ge, H, O - search for minerals with similar chemistry

Crystallography of CarboiriteHide

Crystal System:
Triclinic
Cell Parameters:
a = 9.51 Å, b = 5.56 Å, c = 9.29 Å
α = 96.08°, β = 101.52°, γ = 89.45°
Ratio:
a:b:c = 1.71 : 1 : 1.671
Unit Cell V:
478.58 ų (Calculated from Unit Cell)
Twinning:
Polysynthetic twinning // to (001).

Type Occurrence of CarboiriteHide

Synonyms of CarboiriteHide

Other Language Names for CarboiriteHide

German:Carboirit
Spanish:Carboirita

Relationship of Carboirite to other SpeciesHide

Member of:
Chloritoid Group
Other Members of this group:
Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2Mon. 2/m : B2/b
MagnesiochloritoidMgAl2(SiO4)O(OH)2Mon. 2/m : B2/b
Ottrélite(Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2Mon.
Forms a series with:
ChloritoidCarboirite-Chloritoid Series

Related Minerals - Nickel-Strunz GroupingHide

9.J0.10BartelkeitePb(Fe2+Ge)[Ge2O7](OH)2 · H2OMon. 2/m : P21/m
9.J0.15OtjisumeitePbGe4O9Tric.

Related Minerals - Dana Grouping (8th Ed.)Hide

52.3.3.1Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2Mon. 2/m : B2/b
52.3.3.2MagnesiochloritoidMgAl2(SiO4)O(OH)2Mon. 2/m : B2/b
52.3.3.3Ottrélite(Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2Mon.
52.3.3.4KumtyubeiteCa5(SiO4)2F2Mon. 2/m : P21/b
52.3.3.6HydroxylchondroditeMg5(SiO4)2(OH)2Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.11.1RomarchiteSnOTet.
7.11.2CassiteriteSnO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.11.4SchoenfliesiteMg[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
7.11.5BurtiteCa[Sn(OH)6]Iso.
7.11.6VismirnoviteZn[Sn(OH)6]Iso.
7.11.7WickmaniteMn2+[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
7.11.8TetrawickmaniteMn2+[Sn4+(OH)6]Tet. 4/m : P42/n
7.11.9JeanbandyiteFe3+xFe2+1-xSn(OH)6-xOx (1 ≥ x > 0.5)Tet. 4/m : P42/n
7.11.10NataniteFe2+[Sn(OH)6]Iso. m3m (4/m 3 2/m) : Pn3m
7.11.11Mushistonite(Cu,Zn,Fe2+)[Sn(OH)6]
7.11.12Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)Trig. 3m (3 2/m) : P3m1
7.11.13MagnesionigeriteTrig.
7.11.14ArgutiteGeO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.11.15BrunogeieriteGe4+Fe2+2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.11.16StottiteFe2+[Ge4+(OH)6]Tet.
7.11.18OtjisumeitePbGe4O9Tric.
7.11.19BartelkeitePb(Fe2+Ge)[Ge2O7](OH)2 · H2OMon. 2/m : P21/m
7.11.20MassicotPbOOrth. mmm (2/m 2/m 2/m) : Cmmm
7.11.21LithargePbOTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
7.11.22MiniumPb3O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
7.11.23PlattneritePbO2Tet. 4/mmm (4/m 2/m 2/m)
7.11.24Scrutinyiteα-PbO2Orth.
7.11.25MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5Iso. m3m (4/m 3 2/m) : Fm3m
7.11.26MacedonitePbTiO3Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
7.11.27CesàrolitePb(Mn4+)3O6(OH)2
7.11.28CoronaditePb(Mn4+6Mn3+2)O16Mon. 2/m
7.11.29QuenselitePbMnO2(OH)Mon. 2/m : P2/b
7.11.30PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 3 2 : P3 1 2
7.11.31Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex.
7.11.32SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.

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 CarboiriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Johan, Z.; Oudin, E. & Picot, P. (1983): Germanium and gallium analogs of silicates and oxides from zinc deposits of the French central Pyrenees; argutite and carboirite, two new mineral species. Tschermaks Mineralogische und Petrographische Mitteilungen 31, 97-119. (in French)
American Mineralogist: 69: 406.

Internet Links for CarboiriteHide

Localities for CarboiriteHide

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.
France (TL)
 
  • Occitanie
    • Ariège
[Tschermaks Min.Petr.Mitt.(1983) 31, 97-119; Nickel & Nichols, 1991 - "Mineral Reference Manual" p35]
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