Mineralogy Database

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Sample n° 7085

Minerals found in the sample
Mineral Formula Category Subcategory Importance
POLYCRASE-(Y) Y(Ti,Nb)2(O,OH)6 oxides and hydroxides - major
Description
Description: sample with polycrase as bright black material and rust-coloured powder
Origin
  • Country: Brazil
  • Region: Paraiba
  • Locality: Picui, Frei Martinho Cabore
Specification
  • Donors: de Almeida
    Donation year: 1959
  • Sampling year:
    Registration date:
  • Quantity: 2
    Size: 3 x 3 cm
  • Dimension code 1>2>3: 3
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: yes
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: yes