Carboirite
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Formula:
FeAl2(GeO4)O(OH)2
Colour:
Green
Lustre:
Vitreous
Hardness:
6
Crystal System:
Triclinic
Member of:
Name:
Named after the type locality, Carboire, Ariège, Midi-Pyrénées, France.
Type Locality:
Classification of Carboirite
Approved
4/C.22-10
9.J0.05
9 : SILICATES (Germanates)
J : Germanates
0 :
9 : SILICATES (Germanates)
J : Germanates
0 :
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
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
7.11.17
7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb
7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb
Physical Properties of Carboirite
Optical Data of Carboirite
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.
and does not take into account mineral colouration.
Surface Relief:
High
Chemical Properties of Carboirite
Formula:
FeAl2(GeO4)O(OH)2
IMA Formula:
Fe2+Al2GeO5(OH)2
Crystallography of Carboirite
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°
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 Carboirite
Synonyms of Carboirite
Other Language Names for Carboirite
German:Carboirit
Spanish:Carboirita
Relationship of Carboirite to other Species
Member of:
Other Members of this group:
| Chloritoid | (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2 | Mon. 2/m : B2/b |
| Magnesiochloritoid | MgAl2(SiO4)O(OH)2 | Mon. 2/m : B2/b |
| Ottrélite | (Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2 | Mon. |
Forms a series with:
Related Minerals - Nickel-Strunz Grouping
| 9.J0.10 | Bartelkeite | Pb(Fe2+Ge)[Ge2O7](OH)2 · H2O | Mon. 2/m : P21/m |
| 9.J0.15 | Otjisumeite | PbGe4O9 | Tric. |
Related Minerals - Dana Grouping (8th Ed.)
| 52.3.3.1 | Chloritoid | (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2 | Mon. 2/m : B2/b |
| 52.3.3.2 | Magnesiochloritoid | MgAl2(SiO4)O(OH)2 | Mon. 2/m : B2/b |
| 52.3.3.3 | Ottrélite | (Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2 | Mon. |
| 52.3.3.4 | Kumtyubeite | Ca5(SiO4)2F2 | Mon. 2/m : P21/b |
| 52.3.3.6 | Hydroxylchondrodite | Mg5(SiO4)2(OH)2 | Mon. 2/m : P21/b |
Related Minerals - Hey's Chemical Index of Minerals Grouping
| 7.11.1 | Romarchite | SnO | Tet. |
| 7.11.2 | Cassiterite | SnO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
| 7.11.4 | Schoenfliesite | Mg[Sn(OH)6] | Iso. m3 (2/m 3) : Pn3 |
| 7.11.5 | Burtite | Ca[Sn(OH)6] | Iso. |
| 7.11.6 | Vismirnovite | Zn[Sn(OH)6] | Iso. |
| 7.11.7 | Wickmanite | Mn2+[Sn(OH)6] | Iso. m3 (2/m 3) : Pn3 |
| 7.11.8 | Tetrawickmanite | Mn2+[Sn4+(OH)6] | Tet. 4/m : P42/n |
| 7.11.9 | Jeanbandyite | Fe3+xFe2+1-xSn(OH)6-xOx (1 ≥ x > 0.5) | Tet. 4/m : P42/n |
| 7.11.10 | Natanite | Fe2+[Sn(OH)6] | Iso. m3m (4/m 3 2/m) : Pn3m |
| 7.11.11 | Mushistonite | (Cu,Zn,Fe2+)[Sn(OH)6] | |
| 7.11.12 | Ferronigerite-2N1S | (Al,Fe,Zn)2(Al,Sn)6O11(OH) | Trig. 3m (3 2/m) : P3m1 |
| 7.11.13 | Magnesionigerite | Trig. | |
| 7.11.14 | Argutite | GeO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
| 7.11.15 | Brunogeierite | Ge4+Fe2+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 7.11.16 | Stottite | Fe2+[Ge4+(OH)6] | Tet. |
| 7.11.18 | Otjisumeite | PbGe4O9 | Tric. |
| 7.11.19 | Bartelkeite | Pb(Fe2+Ge)[Ge2O7](OH)2 · H2O | Mon. 2/m : P21/m |
| 7.11.20 | Massicot | PbO | Orth. mmm (2/m 2/m 2/m) : Cmmm |
| 7.11.21 | Litharge | PbO | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
| 7.11.22 | Minium | Pb3O4 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc |
| 7.11.23 | Plattnerite | PbO2 | Tet. 4/mmm (4/m 2/m 2/m) |
| 7.11.24 | Scrutinyite | α-PbO2 | Orth. |
| 7.11.25 | Murdochite | PbCu6O8-x(Cl,Br)2x where x<=0.5 | Iso. m3m (4/m 3 2/m) : Fm3m |
| 7.11.26 | Macedonite | PbTiO3 | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
| 7.11.27 | Cesàrolite | Pb(Mn4+)3O6(OH)2 | |
| 7.11.28 | Coronadite | Pb(Mn4+6Mn3+2)O16 | Mon. 2/m |
| 7.11.29 | Quenselite | PbMnO2(OH) | Mon. 2/m : P2/b |
| 7.11.30 | Plumboferrite | Pb2(Fe3+,Mn2+,Mg)11O19 | Trig. 3 2 : P3 1 2 |
| 7.11.31 | Magnetoplumbite | (Pb,Mn)(Fe,Mn)12O19 | Hex. |
| 7.11.32 | Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. |
Other Information
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 Carboirite
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 Carboirite
mindat.org URL:
https://www.mindat.org/min-893.html
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Localities for Carboirite
ⓘ - 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.
- 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).
All localities listed without proper references should be considered as questionable.
France (TL) | |
| [Tschermaks Min.Petr.Mitt.(1983) 31, 97-119; Nickel & Nichols, 1991 - "Mineral Reference Manual" p35] |