author(s) : Lacroix
date of publication : 1902
source : Bull.Soc.Fr.Min.Crist.(25) p.85
formula : (Mg,Fe)Al3(BO4)O(SiO4)
comments about the origin : etiquette Museum d'Histoire Naturelle No127.73 ech. Museum 1963
catalog number(s) : 20188
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP