Ref.: F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964; Bull. Minéral., 1987, 110, pp. 359-371.
Localization : Along RN 9 road, between Lempdes and Massiac, in a road curve under Léotoing castle ruins.
Amphibolite, serpentinite and listvenite lenses, with reaction aureoles in sericitized biotite-sillimanite-cordierite anatexite.
Plagioclasite exsudations at the contact amphibolite/anatexite.