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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: reniform geodes with yellow and white bands (20 cm)
Country: France       Region: Allier       Locality: Beauvoir
Donors Comblain Sampling year
Donation year 1968 Registration date
Quantity 1 Dimension code 1>2>3 2
Size 1 Quality code 1>2>3 1
Holotype no Thin section no
Paratype no Chemical analysis no
Radioactive no X-Ray spectra no