author(s) : Skerl, Bannister and Groves
date of publication : 1934
source : Min.Mag.(23) p.598-606
formula : co-Staurolite
comments about the origin : Vrana 1972
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP