Min. A silico-borate of yttrium and barium, from Norway.
1886. Amer. Jrnl. Science, March, 230. Cappelenite occurs in hexagonal crystals (c=0·4301) of a brown color, a greasy to vitreous luster on fracture surfaces.
Min. A silico-borate of yttrium and barium, from Norway.
1886. Amer. Jrnl. Science, March, 230. Cappelenite occurs in hexagonal crystals (c=0·4301) of a brown color, a greasy to vitreous luster on fracture surfaces.
