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Sample n° 13445

Minerals found in the sample
Mineral Formula Category Subcategory Importance
CHALCEDONY (quartz) SiO2 tektosilicates - major
Description: concretion
Country: Madagascar       Region: Mahajanga Province       Locality: Tsaratanana road
Donors Randrianaivoson Sampling year
Donation year 1976 Registration date
Quantity 1 Dimension code 1>2>3 3
Size 2 Quality code 1>2>3 1
Holotype no Thin section no
Paratype no Chemical analysis no
Radioactive no X-Ray spectra no