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Sample n° 13471
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
MAGNESIO-ARFVEDSONITE | NaNa2(Mg4Fe3+)Si8O22(OH)2 | inosilicates | amphiboles | major |
Description
Description:
black needles (3 cm) in rock
Origin
- Country: Madagascar
- Region: Fianarantsoa Province
- Locality: Andrigitra Massif, S of Fianarantsoa
Specification
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Donors: Stagiaires (Madagascar)Donation year: 1977
-
Sampling year:Registration date:
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Quantity: 1Size: 2
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Dimension code 1>2>3: 2Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
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Thin section: noChemical analysis: noX-Ray spectra: no