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Sample n° 12662
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
SCORODITE | Fe3+(AsO4)2H2O | arsenates | - | major |
WOLFRAMITE | (Fe2+,Mn2+)(WO4) | molybdates and tungstates | - | major |
QUARTZ | SiO2 | tektosilicates | - | minor |
TOURMALINE | - | cyclosilicates | tourmaline | minor |
Description
Description:
black wolframite coating, yellowish scorodite crust
Origin
- Country: Congo (RDC)
- Region: Kivu
- Locality: Walungu, Kadubu, Mudubwe
Specification
-
Donors: SafiannikoffDonation year: 1971
-
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