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Sample n° 2891
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
GALENA | PbS | sulfides and sulfosalts | - | major |
PLUMBOJAROSITE | Pb0,5Fe3+3(SO4)2(OH)6 | sulfates | - | minor |
Description
Description:
massive ore (galenite), ochre coating (plumbojarosite)
Information:
geochronology - Eberhardt, P., Geiss, J. & Houtermans, F.G., 1955. Isotopenverhältnisse von 'gewöhnlichem' Blei und ihre Deutung. Zeitschrift für Physik 141, 91-102. (Be 37) // Eberhardt, P., Geiss, J., Houtermans, F.G. & Signer, P., 1962. Age determinations on lead isotopes. Geologische Rundschau 52, 836-852. (Be 37)
Origin
- Country: Congo (Congo-Brazzaville)
- Region: Niari
- Locality: Yangakoubanza
Specification
-
Donors: Cahen Nève de MévergniesDonation year: 1948
-
Sampling year:Registration date:
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Quantity: 2Size: 2
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Dimension code 1>2>3: 3Quality 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