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Sample n° 10378
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
BERYL | Be3Al2Si6O18 | cyclosilicates | - | major |
COLUMBITE | (Fe,Mg,Mn)Nb2O6 | oxides and hydroxides | - | minor |
Description
Description:
white stony block (8 cm) with black columbite crystals (1 cm)
Origin
- Country: Rwanda
- Region: Gisenyi
- Locality: Rongi
Specification
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Donors: BertossaDonation year:
-
Sampling year:Registration date:
-
Quantity: 1Size: 2
-
Dimension code 1>2>3: 3Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
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Thin section: noChemical analysis: noX-Ray spectra: no