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Sample n° 852

Minerals found in the sample

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

Description

Description: red crystals (feldspar), green plates (biotite)

Information: sample for geochronology

Origin

Country: Congo (RDC)
Region: Bas-Congo
Locality: Matadi, Mpozo

Specification

Donors: Becquaert

Donation year:
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: yes

Chemical analysis: no

X-Ray spectra: no