Authors: Perseil, EA Blanc, P Ohnenstetter, D

Citation: Ea. Perseil et al., As-bearing fluorapatite in manganiferous deposits from St. Marcel Praborna, Val d'Aosta, Italy, CAN MINERAL, 38, 2000, pp. 101-117

Authors: Meisser, N Perseil, EA Brugger, J Chiappero, PJ

Citation: N. Meisser et al., Strontiomelane, SrMn64+Mn23+O16, a new mineral species of the cryptomelanegroup from St. Marcel Praborna, Aosta Valley, Italy, CAN MINERAL, 37, 1999, pp. 673-678