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Sample n° 10033

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
CORDIERITE	Mg₂Al₄Si₅O₁₈	cyclosilicates	-	major

Description

Description: grey crystals (mm) in porphyritic granite

Origin

Country: France
Region: Creuse
Locality: Montebras

Specification

Donors: Gerards

Donation year: 1963
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