Mineralogy Database

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Sample n° 9085

Minerals found in the sample
Mineral Formula Category Subcategory Importance
ANDALUSITE Al2SiO5 nesosilicates - major
Description
Description: crystals with black cross (1-5 cm), var. chiastolite
Information: Petreus, I., 1974. The divided structure of crystals. II. Secondary structures and habits. Neues Jahrbuch für Mineralogie, Abhandlungen, 122, 314-338.
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Kirengo
Specification
  • Donors: Comblain
    Donation year: 1962
  • Sampling year:
    Registration date:
  • Quantity: X
    Size: 2
  • Dimension code 1>2>3: 3
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: no