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Sample n° 16333
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
OPAL | SiO2nH2O | tektosilicates | - | major |
Description
Description:
whitish to greenish-grey massive nodules
Origin
- Country: Tanzania
- Region: Kilimanjaro Region
- Locality: Chambogo magnesite mine
Specification
-
Donors: ErreraDonation year: 2010
-
Sampling year: 1994Registration date:
-
Quantity: 3Size:
-
Dimension code 1>2>3: 2Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no