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Sample n° 10560

Minerals found in the sample
Mineral Formula Category Subcategory Importance
APATITE Ca5(PO4)3(OH,F,Cl) phosphates - major
BJAREBYITE BaMn2+2Al2(PO4)3(OH)3 phosphates - major
BURANGAITE NaFe2+Al5(PO4)4(OH)6•2H2O phosphates - major
GATUMBAITE CaAl2(PO4)2(OH)2•H2O phosphates - major
QUARTZ SiO2 tektosilicates - minor
SCORZALITE Fe2+Al2(PO4)2(OH)2 phosphates - minor
TROLLEITE Al4(PO4)3(OH)3 phosphates - minor
Description
Description: block of mixed blue and white phosphates (10 cm)
Information: holotype/cotype of gatumbaite (IMA Catalogue of Type Mineral Specimens) // von Knorring, O. & Fransolet, A.M., 1977. Gatumbaite, CaAl2(PO4)2(OH)2.H2O : a new species from Buranga pegmatite, Rwanda. Neues Jahrbuch für Mineralogie, Monatshefte 1977, 561-568. // Fransolet, A.M., 1974. Etude Minéralogique et Pétrologique des Phosphates de Pegmatites Granitiques. Thèse de Docteur en Sciences, Université de Liège, Belgique, 317 pp.
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Buranga
Specification
  • Donors: Bertossa
    Donation year:
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 2
  • Dimension code 1>2>3: 1
    Quality code 1>2>3: 1
  • Holotype: yes
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: yes