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Sample n° 4621
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
DIOPTASE | CuSiO3H2O | cyclosilicates | - | major |
CHRYSOCOLLA | (Cu2-xAlx)2H2-xSi2O5(OH)4nH2O | phyllosilicates | - | minor |
Description
Description:
dioptase crystals (1 cm) on blue striated chrysocolla substrate
Origin
- Country: Congo (Congo-Brazzaville)
- Region: Pool
- Locality: Mindouli
Specification
-
Donors: PolinardDonation year: 1954
-
Sampling year:Registration date:
-
Quantity: 1Size: 2
-
Dimension code 1>2>3: 2Quality 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