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Sample n° 12895

Minerals found in the sample
Mineral Formula Category Subcategory Importance
PYROLUSITE MnO2 oxides and hydroxides - major
Description: black fibro-radial material
Country: Nigeria       Region: Jos Plateau       Locality:
Donors Cuypers Sampling year
Donation year 1972 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