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WOLCIIITE. 203 a b C d e / 9 40’8t 41-38 40'04 40-42 41-83 42-88 41-92 12-85 12’68 15-16 13-06 13-48 1306 12-38 26-28 25-68 24-82 24-60 24-54 24-34 26-08 20-31 19-63 18-99 19-49 20-15 19-76 19-62 Sindig, c from Meiseberg (a = 5’703...S'792) by Bromeis, from Neudorf (g = 5-822... 6'863), d by Bromeis, e by Eammelsberg, from Wolfsberg (a = 5-726...5-855), / by Bromeis, y by Ram- melsberg:— Lead . . Copper . Antimony Sulphur . In e and y the antimony was deduced from the loss. In crystals, granular masses, and disseminated. Occurs in veins in slate rocks, with galena, antimonite, blende, towanite, mispickel, quartz, chalybite, dolomite. Is found near Neudorf, Wolfsberg, Clausthal and Andreasberg in the Harz, Braunsdorf and Gross Voigtsberg in Saxony, Ober Lahr in Sayn-Altenkirchen, Kapnik and Oflenbanya in Tran sylvania, Neusohl in Hungary, Servoz in Savoy, Alais and Pontgibaud in France, Brozzo in Piedmont, Huel Boys and Nanslo near Redruth in Cornwall, Beeralstone in Devonshire, Siberia, Potosi, Guanaxuato in Mexico. 02. WOLCHTTE.—Prismatoidischer Dystom-Glanz; Mobs. Antimonkupferglanz; llausmann. Wolchit; Haidinger. Prismatic. a 100, b 010, c 001, m 110, e Oil. Cleavage, a, imperfect. Fracture imperfect conchoidal. Opaque. Lustre metallic. Blackish lead-grey. Streak the same. Brittle, li = 3’0. G = 6'7...6‘8. Before the blowpipe on charcoal fuses with ebullition, de posits lirst a white and then a yellow sublimate, yields a lead- grey metallic globule, which, after prolonged roasting, with Boda yields a globule of copper. Analysis by Selirotter:— Lead Copper 1735 Iron 140 Antimony .... 1C65 Arsenic 6 ' 04 Sulphur 28‘60 Is found in crystals and massive, in a bed of chalybite with pyrite, antimonite and galena at St. Gertraud in the Lavantthal in Carinthia. k 6