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Sample n° 13519
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
CORDIERITE | Mg2Al4Si5O18 | cyclosilicates | - | major |
FELDSPAR | - | tektosilicates | feldspar | minor |
Description
Description:
purplish blue crystalline mass
Origin
- Country: Madagascar
- Region: Toamasina Province
- Locality: Tamatave
Specification
-
Donors: RakotosoaDonation year: 1978
-
Sampling year:Registration date:
-
Quantity: 1Size: 2
-
Dimension code 1>2>3: 3Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: yes