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Sample n° 8384

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
TANTALITE	(Fe2+,Mn2+)Ta2O6	oxides and hydroxides	-	major

Description

Description: black altered crystals in greisen

Information: Gouder de Beauregard, C., Dubois, J. & Bourguignon, P., 1967. Comportement thermique des columbotantalites. Annales de la Société Géologique de Belgique 90, 501-518.

Origin

• Country: Rwanda
• Region: Butare
• Locality: Nyabisindu

Specification

• Donors: Poutchinian
  Donation year: 1959
• 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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