Mineralogy Database

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Sample n° 15438

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
TOPAZ	Al₂SiO₄F₂	nesosilicates	-	major

Description

Description: well-developed brown crystals on substrate

Origin

Country: Mexico
Region: San Luis Potosi
Locality:

Specification

Donors: Errera

Donation year: 1989
Sampling year:

Registration date:
Quantity: 1

Size:

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