Mineralogy Database

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Sample n° 12055

Minerals found in the sample
Mineral Formula Category Subcategory Importance
CASSITERITE SnO2 oxides and hydroxides - major
WOLFRAMITE (Fe2+,Mn2+)(WO4) molybdates and tungstates - major
Description
Description: large anhedral crystals in quartz matrix
Origin
  • Country: Portugal
  • Region: Braganca
  • Locality: Ribeira Mine
Specification
  • Donors: Aderca
    Donation year: 1969
  • Sampling year:
    Registration date:
  • Quantity:
    Size:
  • Dimension code 1>2>3: 2
    Quality code 1>2>3: 3
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: no