Lassur mine, Ariège, Midi-Pyrénées, France

North zone of L'Aston Massif.
Hematite mine in Middle-Devonian iron-rich dolomites.
Siderite, hematite, pyrite, dolomite, quartz lenses in dolomites.
Blue beryl has been found with ferroan dolomite in cracks affecting these lenses.

Ref.:
- Bec, F. (1991). "Lassur, un nouvel indice français de parisite." Minéraux et Fossiles(188),pp:7-11.
- http://www.mineralup.com/mineraltripsariege.htm

Mineral List:

	Anorthite

	Baryte

	Beryl

	Clinochlore

	Dolomite

	var: Ferroan Dolomite

	Hematite

	Parisite-(Ce)

	Pyrite

	Quartz

	Siderite

	Talc

12 entries listed. 11 valid minerals.

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