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Sample n° 11342
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
MAGNESIORIEBECKITE | [ ]Na2(Mg3Fe3+2)Si8O22(OH)2 | inosilicates | amphiboles | major |
Description
Description:
black spots in rock matrix
Origin
- Country: Madagascar
- Region: Fianarantsoa Province
- Locality: Ambatofinandrahana
Specification
-
Donors: Geological Survey of MadagascarDonation year: 1967
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Sampling year:Registration date:
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Quantity: 1Size: 2
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Dimension code 1>2>3: 3Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
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Thin section: noChemical analysis: noX-Ray spectra: yes