Mineralogy Database

Search |  About the mineralogy database |  Contact

Sample n° 14542

Minerals found in the sample
Mineral Formula Category Subcategory Importance
CORUNDUM Al2O3 oxides and hydroxides - major
Description
Description: reddish orange transparent cut stone (round cabochon cut), var sapphire (padparadascha)
Origin
  • Country: Tanzania
  • Region: Tanga Region
  • Locality: Umba Valley
Specification
  • Donors:
    Donation year: 1990
  • Sampling year:
    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
Previous page