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Sample n° 11934
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
CHALCEDONY (quartz) | SiO2 | tektosilicates | - | major |
QUARTZ | SiO2 | tektosilicates | - | minor |
Description
Description:
reniform geodes with yellow and white bands (20 cm)
Origin
- Country: France
- Region: Allier
- Locality: Beauvoir
Specification
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Donors: ComblainDonation year: 1968
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Sampling year:Registration date:
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Quantity: 1Size: 1
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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