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Sample n° 13207
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
HORNBLENDE | [ ]Ca2((Fe2+,Mg)4Al)(Si7Al)O22(OH)2 | inosilicates | amphiboles | major |
TITANITE | CaTiSiO5 | nesosilicates | - | minor |
Description
Description:
oriented black prismatic crystals (2 cm) in beige microgranular rock
Origin
- Country: Congo (RDC)
- Region: Bas-Congo
- Locality: Boma, Carrière des Voies Navigables
Specification
-
Donors: TackDonation year: 1974
-
Sampling year:Registration date:
-
Quantity: XSize: 2
-
Dimension code 1>2>3: 3Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
-
Thin section: yesChemical analysis: noX-Ray spectra: no