Mineralogy Database

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Sample n° 8995

Minerals found in the sample
Mineral Formula Category Subcategory Importance
ELBAITE Na(Al1,5Li1,5)Al6(Si6O18)(BO3)3(OH)3(OH) cyclosilicates tourmaline major
Description
Description: cleavage fragments of dark green prismatic crystals (4 cm)
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Nyarigamba
Specification
  • Donors: Varlamoff
    Donation year: 1961
  • Sampling year:
    Registration date:
  • Quantity: 3
    Size: 2
  • Dimension code 1>2>3: 3
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: no
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