ANTH0PHYLL1TE. 43 It is hartl, but in a low degree : it scratches fluor-spar with ease, but glass with difficulty. It is rather easily frangible. Specific gravity, 3.285, Hauy. 3.118, Schumacher. 3.156, John. Chemical Characters. It becomes dark greenish-black before the blowpipe, but is infusible. Constituent Parts. Silica, - 56.00 Alumina, 13.30 Magnesia, 14.00 Lime, 3.33 Iron, 6.00 Oxide of Manganese, 3.00 Water, - 1.43 John, Chem. Untersuchungen, 1. s. 200, 201. Geognostic and Geographic Situations. It occurs at Kongsberg in Norway, along with horn blende ; and it is said to have been discovered in granite, near Microw in Mecklenburg*. Observations. It is named Anthophyllile, from the resemblance of its colour to that of the Antliophyllum. This name was given to it by Schumacher, the naturalist who first de scribed it. 9. Hyperstene. * Leonhard, Taschenbuch, t. iv. s. 256.