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Sample n° 742
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
CHRYSOCOLLA | (Cu2-xAlx)2H2-xSi2O5(OH)4nH2O | phyllosilicates | - | major |
CUPRITE | Cu2O | oxides and hydroxides | - | major |
MALACHITE | Cu2(CO3)(OH)2 | carbonates | - | minor |
Description
Description:
red block, crust of green needles (malachite), blue surface layer (chrysocolla)
Origin
- Country: Congo (RDC)
- Region: Kasai
- Locality: Ntendu
Specification
-
Donors: KostkaDonation year: 1927
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Sampling year:Registration date:
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Quantity: 1Size: 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