Mineralogy Database

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
BIOTITE	K(Fe²⁺,Mg)₃(AlSi₃O₁₀)(OH)₂	phyllosilicates	mica	major

Description

Description: large black lamellae on vein quartz

Information: geochronology - Cahen, L. & Snelling, N.J., 1966. The Geochronology of Equatorial Africa. North-Holland Publishing Company, Amsterdam, 195 pp. (Ledent, unpublished data)

Origin

Country: Burundi
Region:
Locality: Bujumbura-Butare road, km 5

Specification

Donors: Denaeyer (ULB)

Donation year: 1958
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: no

Sample n° 6400