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Sample n° 10033
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
CORDIERITE | Mg2Al4Si5O18 | cyclosilicates | - | major |
Description
Description:
grey crystals (mm) in porphyritic granite
Origin
- Country: France
- Region: Creuse
- Locality: Montebras
Specification
-
Donors: GerardsDonation year: 1963
-
Sampling year:Registration date:
-
Quantity: 1Size: 2
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Dimension code 1>2>3: 3Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no