BAITLITE. 641 ANDESINE is a mineral greatly resembling albite. With amphibole it constitutes a rock which occurs in the Andes, to which the name andesite has been given. The crystals of andesine resemble albite. The cleavage of andesine is not so distinct as that of albite. g = 27328. Andesine fuses as readily as oligoclase. Saccharite is probably a par tially decomposed andesine. Cleavable distinctly in one direc tion. Fracture splintery, uneven. Translucent on the edges. Lustre vitreous, inclining to pearly. White, greenish-white, apple-green. Very brittle, h = 5 - 0...6 - 0. G = 2'06...2'69. Fuses before the blowpipe on the sharpest edges only. Imper fectly decomposed by hydrochloric and sulphuric acids. Is found in veins in serpentine on the Glasendorf near Franken stein in Silesia. Analyses a of andesine from the Andes by Abich, I wax-coloured, from the syenite of the Ballon de Ser- vance in the Vosges, o coral-red, from Coravillers in the Vosges, both by Delesse, d of saccharite by C. Schmidt, e of a mineral resembling albite from Pisoje near Popayan by ale Francis: d e G . 2-7328 2'683 2-651 — 2-64 Silica 69-66 68-92 58-91 68-93 56-72 Alumina .... . 24-28 26-06 24-69 23-60 26-52 Bed oxide of iron l - 58 trace 0-99 — 0-70 Oxide of nickel . . — — — 0-39 — Lime 677 4-64 4-01 6'67 9-38 Magnesia .... 1-08 0-41 0-40 0-56 — Soda 6-63 7'20 7-69 7-42 6-19 Potash 1'08 2'06 2 4 63 0-06 0'80 Water — 1-27 0-98 2-21 — AUEALITE.—In prisms. Black. Is found at Abo. B AB A LITE.—Black slate with cavities filled with a black powder. A silico-aluminate of iron. Is found at Baralon, Cote du Nord, France. BAULITE.—Oblique. Transparent. White. g = 2-858. In very thin splinters melts before the blowpipe into a clear glass. Analysis by Genthsilica 80-23, alumina 1171, lime 1-20, soda 2'2G, potasb 4-92. Is found in the matter ejected by Krabla in Iceland. The name baulite w-as first given by For ehammer to a greyish-white porous mineral from the Baula mountain in Iceland, having nearly the same composition as the crystals analyzed by Genth, but sometimes containing also 2...3 per cent, of water.