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Sample n° 16894

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
ANDREMEYERITE	BaFe2+2(Si2O7)	sorosilicates	-	major

Description

Description: melilite-leucite-nephelinite fragments with dark green andremeyerite in vesicles

Information: Sahama, T.G., Siivola, J. & Rehtijarvi, P., 1973. Andremeyerite, a new barium iron silicate, from Nyiragongo, Zaire. Bulletin of the Geological Society of Finland 45, 1-8. (sample VS 219) // Andersen, T., Elburg, M.A. & Erambert, M., 2014. Extreme peralkalinity in delhayelite- and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos 206/207, 164-178.

Origin

• Country: Congo (RDC)
• Region: Kivu
• Locality: Rutshuru, Nyiragongo

Specification

• Donors: Sahama
  Donation year:
• Sampling year:
  Registration date:
• Quantity: 3
  Size:

• Dimension code 1>2>3: 2
  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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