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Sample n° 11818
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
SCHORL | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | cyclosilicates | tourmaline | major |
CALCITE | Ca(CO3) | carbonates | - | minor |
Description
Description:
black prismatic crystal (12 cm) on white calcite
Origin
- Country: Czech Republic
- Region: Vysocina
- Locality: Dolni Bory
Specification
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Donors: SteenstraDonation year: 1968
-
Sampling year:Registration date:
-
Quantity: 1Size: 2
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Dimension code 1>2>3: 1Quality 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