Mineralogy Database

Search |  About the mineralogy database |  Contact

Sample n° 12574

Minerals found in the sample
Mineral Formula Category Subcategory Importance
GONNARDITE (Na,Ca)2(Si,Al)5O10•3H20 tektosilicates zeolites major
HEULANDITE (Ca,Na,K)5(Si27Al9)O72•26H2O tektosilicates zeolites major
Description
Description: pink gonnardite fibres (originally designated tetranatrolite) and red hematite aggregates in green rock
Origin
  • Country: Congo (RDC)
  • Region: Bas-Congo
  • Locality: Boma, Lokandu road
Specification
  • Donors: Steenstra
    Donation year: 1970
  • Sampling year:
    Registration date:
  • Quantity: 1
    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: yes