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Carboirite-III Mineral Data
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General Carboirite-III Information
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 Chemical Formula: |
Fe++Al2GeO5(OH)2 |
| Composition: |
Molecular Weight = 296.43 gm |
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Aluminum 18.20 % Al 34.40 % Al2O3 |
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Iron 18.84 % Fe 24.24 % FeO |
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Germanium 24.49 % Ge 35.29 % GeO2 |
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Hydrogen 0.68 % H 6.08 % H2O |
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Oxygen 37.78 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+Al2GeO5(OH)2 |
| Environment: |
Zink deposit whth sphalerite with Ge-bearing quartz. |
| IMA Status: |
Approved IMA 1983 |
| Locality: |
Carboire, Marimana Dome, Ariege< Ptrenees< France. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
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Carboirite-III Crystallography
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| Axial Ratios: |
a:b:c =1.7082:1:1.6692 |
| Cell Dimensions: |
a = 9.513, b = 5.569, c = 9.296, Z = 4; alpha = 96.08°, beta = 101.52°, gamma = 89.45° V = 479.82 Den(Calc)= 4.10 |
| Crystal System: |
Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: C1 |
| X Ray Diffraction: |
By Intensity(I/Io): 4.528(1), 2.48(0.9), 2.728(0.9), |
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Physical Properties of Carboirite-III
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| Color: |
Green. |
| Hardness: |
6 - Orthoclase |
| Luster: |
Vitreous (Glassy) |
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Optical Properties of Carboirite-III
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| Gladstone-Dale: |
CI calc= 0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1793,KC= 0.1964
Ncalc = 1.81 |
| Optical Data: |
Biaxial (+), a=1.731, b=1.735, g=1.74, bire=0.0090, 2V(Calc)=84, 2V(Meas)=7. |
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Calculated Properties of Carboirite-III
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| Electron Density: |
Bulk Density (Electron Density)=3.93 gm/cc
note: Specific Gravity of Carboirite-III =4.10 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PECarboirite-III = 21.10 barns/electron
U=PECarboirite-III x rElectron Density= 82.86 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Carboirite-III is Not Radioactive |
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Carboirite-III Classification
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| Dana Class: |
07.11.06.01 (07)Multiple Oxides |
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(07.11)as titano-oxides with [4] and [6] substitutions |
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(07.11.06)Dana Group |
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07.11.06.01 Carboirite-III FeAl2GeO5(OH)2 C1 1 |
| Strunz Class: |
09.JA.05 09 - SILICATES (Germanates) |
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09.J - Germanates |
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09.JA -Germanates |
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09.JA.05 Carboirite-III FeAl2GeO5(OH)2 C1 1 |
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09.JA.05 Carboirite-VIII Fe(Al,Ge)2O[(Ge,Si)O4](OH)2 C1 1 |
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09.JA.05 Orebroite-VIII Mn3(Sb,Fe)SiO4(O,OH)3 P 3 3 |
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Other Carboirite-III Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Carboirite-III :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Carboirite-III Specimen Label here :
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Carboirite-III
Fe++Al2GeO5(OH)2
Dana No: 07.11.06.01 Strunz No: 09.JA.05
Locality:
Notes:
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