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Sample n° 20421
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
FERRO-ACTINOLITE | [ ]Ca2(Mg2,5-0,0Fe2+2,5-5,0)Si8O22(OH)2 | inosilicates | amphiboles | major |
Description
Description:
fan-like groups of elongated crystals
Origin
- Country: Congo (Congo-Brazzaville)
- Region: Kouilou
- Locality: Nkougni
Specification
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Donors: FrançoisDonation year: 2025
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Sampling year: 2024Registration date:
-
Quantity: 1Size:
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Dimension code 1>2>3: 1Quality 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