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Sample n° 12836
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
MICROLITE | (Ca,Na)2Ta2O6(OH) | oxides and hydroxides | - | major |
TANTALITE | (Fe2+,Mn2+)Ta2O6 | oxides and hydroxides | - | major |
Description
Description:
heavy grey-yellow microlite with enclosed black tantalite
Origin
- Country: Congo (RDC)
- Region: Orientale
- Locality: Mambasa, Mapembe
Specification
-
Donors: SafiannikoffDonation year: 1971
-
Sampling year:Registration date:
-
Quantity: 2Size: 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: no