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658 APPENDIX. EUPHYLLITE. — (B. Silliman. Silliman’s Jour. 1849. 8. 381.) In six-sided prisms having a perfect cleavage parallel to the base. Lustre pearly. White,..pale green. Lamina; brittle, inelastic. H = 3'0. & = 2'963. Chemical characters nearly the same as those of emerylite. Analysis by I. J. Crooke:—silica 39'04, alumina 51'38, lime 3'19, magnesia l - 09, soda 0"87, water 4'59. FTJLLEE’S EAETH.—Fracture uneven, earthy. Opaque. Dull. Green, inclining to white, yellow, brown. Streak shining. Sectile. G = 1'7.. ,2'4. In water falls into powder. Analysis of fuller’s earth from Eeigate by Klaproth:—silica 53'00, alumina lo-oo, oxide of iron 9'75, magnesia l - 25, lime 0'60, chloride of sodium o - lo, water 24-00. Is found massive at Nuttield near Eeigate in Surrey, near Maidstone, Woburn, near Aix la Chapelle, in Saxony, Bohemia, Moravia, Silesia, Stiria. GLOTTALITE. — Cubic. Translucent. Lustre vitreous. White. Brittle. H = 3'5. g = 2-181. Analysis by Thom son:—silica 37'0l, alumina 18-31, red oxide of iron 0 - 60, lime 23'93, water 21-25. Is supposed to have been found at Port Glasgow in Scotland. GEEEN” EAETH. — In small masses in the cavities of amygdaloidal rocks; pseudomorphous after augite. Fracture earthy. Glimmering...dull. Green of various shades. Streak the same, shining. Opaque. Slightly sectile. Soft...friable. G = 2"79...2"83. Analysis of green earth from Pozza in the shape of augite by Eammelsberg:—silica 45'87, alumina 11'18, protoxide of iron 24-63, magnesia 0'28, lime 1-60, potash 6’72, water 9-82. Is found at Monte Baldo near Verona, Oberstein Bohemia, the Faroe islands, Fassathal in the Tyrol in the shape of augite. GEENGESITE. — In hemispherical masses having a ra diated structure. Dark green. Streak greyish-green, h = 2'0. G = 3‘1. Analysis by Hisinger:—silica 27"Ol, alumina 14'31, oxide of manganese 2 - i8, protoxide of iron 25'63, magnesia 14-31, water 12-53. Is found in the Grengesberg in Dalecarlia. GYMNITE.— Translucent on the edges. Lustre resin ous. Yellow. Not so hard as felspar. G = 2-218. Analysis by Thomson:—silica 40-18, magnesia 36-00, alumina ri6, lime 0‘80, water 2i-eo. Is found on the Bare Hills near Baltimore.