Carboirite-III
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Formula:
Fe2+Al2GeO5(OH)2
Lustre:
Vitreous
Hardness:
6
Crystal System:
Triclinic
This page provides mineralogical data about Carboirite-III.
Unique Identifiers
Mindat ID:
6846
Long-form identifier:
mindat:1:1:6846:4
Similar Names
| Carboirite | A valid IMA mineral species | Fe2+Al2O(GeO4)(OH)2 |
| Carboirite-VIII | Fe2+(Al,Ge)2O[(Ge,Si)O4](OH)2 |
Physical Properties of Carboirite-III
Vitreous
Hardness:
6 on Mohs scale
Optical Data of Carboirite-III
Type:
Biaxial (+)
RI values:
nα = 1.731 nβ = 1.735 nγ = 1.74
2V:
Measured: 7° , Calculated: 84°
Max. Birefringence:
δ = 0.009
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r > v
Chemistry of Carboirite-III
Mindat Formula:
Fe2+Al2GeO5(OH)2
Element Weights:
Crystallography of Carboirite-III
Crystal System:
Triclinic
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.
Internet Links for Carboirite-III
mindat.org URL:
https://www.mindat.org/min-6846.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Carboirite-III
Reference List: