Beryllium Borocarbide, C₄B₆Be₆

Lebeau described a compound, C₄B₆Be₆, obtained by heating beryllia and boron in a carbon crucible in the electric furnace. It forms crystals with a metallic lustre, which have a density of 2.4 and dissolve readily in mineral acids. It oxidises superficially at a red heat, and burns in chlorine at about 450° C.