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Sample n° 9960
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
BIOTITE | K(Fe2+,Mg)3(AlSi3O10)(OH)2 | phyllosilicates | mica | major |
Description
Description:
plate-shaped crystals (2-5 cm)
Origin
- Country: Germany
- Region: Eifel
- Locality: Ormont, Prüm, Goldberg volcano
Specification
-
Donors: LepersonneDonation year: 1963
-
Sampling year:Registration date:
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Quantity: 4Size: 2
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Dimension code 1>2>3: 3Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no