Mineralogy Database

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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
  • Donors: François
    Donation year: 2025
  • Sampling year: 2024
    Registration date:
  • Quantity: 1
    Size:
  • Dimension code 1>2>3: 1
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: no
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