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Sample n° 3084
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
SCHORL | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | cyclosilicates | tourmaline | major |
Description
Description:
prismatic crystal in greisen along contact with quartzite
Origin
- Country: Congo (RDC)
- Region: Katanga
- Locality: Muika
Specification
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Donors: MathieuDonation year: 1913
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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