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Sample n° 6897
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
BIOTITE | K(Fe2+,Mg)3(AlSi3O10)(OH)2 | phyllosilicates | mica | major |
QUARTZ | SiO2 | tektosilicates | - | minor |
Description
Description:
crystalline block (7 cm)
Origin
- Country: Czech Republic
- Region: Ustí nad Labem
- Locality: Cinovec
Specification
-
Donors: PolinardDonation year: 1954
-
Sampling year:Registration date:
-
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: no