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Sample n° 20259

Minerals found in the sample
Mineral Formula Category Subcategory Importance
MICROCLINE K(AlSi3O8) tektosilicates feldspar major
Description
Description: large prismatic crystals in gneissic granite matrix, polished surface
Origin
  • Country: Rwanda
  • Region: Butare
  • Locality: Nyakizu, Akanyaru river
Specification
  • Donors: Gerards
    Donation year: 1968
  • 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
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