Abstract
The invention concerns a method for crushing a mineral material, which method comprises: -a step of providing said mineral material to be crushed and at least one grinding aid, said at least one grinding aid is chosen from organic plant materials in order to form a plant grinding aid, - a step of crushing said mineral material in the presence of said at least one grinding aid. And, according to the invention, said at least one grinding aid is composed of particles. And in the course of the crushing step, the at least one plant grinding aid is mixed with the mineral material in a proportion by mass less than 5% of the total mass.