Mineralogy Database

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Sample n° 17026

Minerals found in the sample
Mineral Formula Category Subcategory Importance
AMPHIBOLE inosilicates amphiboles major
CORUNDUM Al2O3 oxides and hydroxides - major
ZOISITE Ca2Al3[Si2O7][SiO4]O(OH) sorosilicates epidote major
Description
Description: corundum (var. ruby) in green matrix
Origin
  • Country: Tanzania
  • Region: Tanga Region
  • Locality: Umba Valley
Specification
  • Donors: Klerkx
    Donation year:
  • Sampling year: 1987
    Registration date:
  • Quantity: 2
    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