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Sample n° 13618

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
GAUDEFROYITE	Ca₄Mn³⁺₃(BO₃)₃(CO₃)O₃	borates	-	major
JOURAVSKITE	Ca₃Mn⁴⁺(SO₄)(CO₃)(OH)₆•12H₂O	sulfates	-	major

Description

Description: black needles (gaudefroyite), small yellow crystals (jouravskite)

Information: specimen from type locality

Origin

Country: Morocco
Region: Ouarzazate Province
Locality: Tachgagalt

Specification

Donors: Ecole des Mines de Paris Guillemin

Donation year: 1979
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: yes