Wikipedia
Lucchesiite
Lucchesiite is a new member of tourmaline-group of minerals. Lucchesiite has the formula CaFeAl(SiO)(BO)(OH)O. It is the calcium and oxygen-analogue of schorl. It has two co-type localizations, one in Czech Republic and the other in Sri Lanka. As the other members of the tourmaline group, it is trigonal.