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268 HYDKOUS EAET1IS, OXIDES, AND ACIDS. Unchanged before the blowpipe. "With borax and salt of phosphorus fuses slowly, and with difficulty, into a clear glass. W ith solution of cobalt becomes blue. Is decomposed by fusion with potash, and by fusion with bisulphate of potash. Is not acted upon by acids. G-Al, alumina 80-21, glucine 19 79, small portions of the alu mina and glucine being replaced by red oxide and protoxide of iron. Analyses of chrysoberyl a from North America by Thomson, i from the Ural, g = 3'689, c from the Brazils, g = 3'737, both by Awdejew, d, e,f from Haddam by Damour:— Alumina . . Oxide of chrome Glucine . . Protoxide of iron Oxides of Pb, Cu In imbedded and isolated crystals, granular crystalline masses, and in grains and pebbles. Is found in very large crystals, with phenakite and emerald, in mica slate on the right bank of the river Takowaju, 85 wersts (59 E. miles) to the east of Katharinenburg in the Ural; at Haddam in Connecticut, and near Saratoga in New York, with garnet, tourmaline, and emerald, in gneiss and granite; at Petersdorf near Wiesenberg in Moravia, with garnet, in fibrous quartz in gneiss ; in isolated crystals and pebbles in river sand associated with various gems at Saffragang in Ceylon, Pegu, and in the Eio Piauhi and Eio Americanas in the Brazils. The faces w were observed in a small crystal from the Brazils. a i c d e / . 76’75 78-92 78-10 76-02 74-34 75-43 — 036 fe- 4-51 3-53 4-06 . 17-79 18-02 17-94 18-41 1903 17-93 4-49 3-12 4-47 — — ✓—X w II O 00 0'29 Si 0-49 2'91 0*06 HYDBOUS EABTIIS, OXIDES, AND ACIDS. 142. ANTIMONOCIIEE. — Antimonial ochre; Phillips. Antimoine oxide; Hauy. Spiesglanzoeker; Mohs, Ilaidinger. Antimonocher; Hausmann. Amorphous. Eracture uneven, earthy. Opaque. Dull- Yellow. Streak yellowish-white, shining. Brittle. Very soft ...friable, g = 6'28. In the matrass yields water. Before the blowpipe is volati lized, depositing a white sublimate upon the charcoal. With soda is reduced.