Gour Oumelalen, Ahaggar Mts (Hoggar Mts), Tamanghasset Province, Algeria

Ultrabasic rocks and basic charnockites in biotite-garnet-sillimanite gneisses and graphite-garnet-wollastonite marbles located in the Northeast Ahaggar Mts

Complex ultrabasic lens : orthoferrosilite-clinopyroxenite, orthopyroxenite and norite(hypersthene, clinopyroxene, magnetite and labradorite), cut by an hypersthene charnockitic pegmatite.

Description of the orthoferrosilite-clinopyroxenite mineralogy.

Mineral List:

	Almandine

	Biotite

	Fayalite

	Ferrosilite

	Hastingsite

	Hedenbergite

	'Hornblende'

	Magnetite

	Quartz

	Rutile

10 entries listed. 8 valid minerals.

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