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632 EESI3VS. Analyses of asphaltum from Auvergne by Ebelmen, and from Peru by Boussingault:— Carbon 76'13 88'63 Hydrogen 9'41 9'69 Oxygen 10-34 1 Nitrogen 2-32 j Ash i"80 — Is found at Limmer in Hanover and near Munster, at Soult, Lobsann, Bechelbrunn, on the Rhone from Seyssel to the Perte du Rhone, in Yal Travers in Neufchatel, the Dead Sea, Avlona in Albania, in a vein in Carharack mine in Cornwall, in veins in Haughmond hill in Shropshire, in East Lothian. 475. IDRIALINE.—Idrialine; Dufrenoy. Braunes Erd- Harz ; Mohs. Idrialit; Hausmann, Haidinger. Fracture uneven. Opaque. Lustre resinous. Greyish- black, brownish-black...reddish-brown. Streak brown, shining. Unctuous. Sectile. h = i-o...rs. a = i - 4...i-e. Melts at between 250° c and 300° c. In the matrass sublimes and is deposited in bright iridescent scales. Inflammable. Soluble in hot oil of turpentine, olive oil, alcohol, aflher, acetic acid, kreosote. The solution, on cooling, deposits it in greenish- yellow, pearly, crystalline scales. Imparts a yellow colour to sulphuric acid. Analyses a by Dumas, b, c by Sehrbtter, d by Bodeker:— abed Carbon .... 94'9 94 - 60 94’80 91'83 Hydrogen ... 5'1 5'19 6'49 S‘30 Oxygen .... — — — 2 ’87 Is found mechanically mixed with a large and variable quan tity of cinnabar and other substances, in thin layers in slate, in the quicksilver mines of Idria. 476. IXOLYTE.—Ixolyt; Hausmann, Haidinger. Amorphous. Fracture conchoidal...earthy. Lustre resinous on the surface of fracture. Hyacinth-red. Streak yellow... brown. Sectile. h = ro. o = roos. Smell aromatic. Softens at 76° c and can be drawn into threads at 100° c. Is found with hartite, filling up cracks in wood converted into brown coal, at Oberhart near Gloggnitz in Austria. 477. PIAUZITE.—Piauzit; Hausmann, Haidinger.