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Sample n° 12571
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
APATITE | Ca5(PO4)3(OH,F,Cl) | phosphates | - | major |
HORNBLENDE | [ ]Ca2((Fe2+,Mg)4Al)(Si7Al)O22(OH)2 | inosilicates | amphiboles | major |
MICROCLINE | K(AlSi3O8) | tektosilicates | feldspar | major |
CALCITE | Ca(CO3) | carbonates | - | minor |
Description
Description:
pegmatite
Origin
- Country: Congo (RDC)
- Region: Bas-Congo
- Locality: Boma, Carrière des Voies Navigables
Specification
-
Donors: SteenstraDonation year: 1974
-
Sampling year:Registration date:
-
Quantity: 2Size: 2
-
Dimension code 1>2>3: 2Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no