EH1ITE. 515 Analysis of tyrolite from Falkenstein by v. Kobell:— Arsenic acid 25-01 Oxide of copper 43’88 Water 17-46 Carbonate of lime 13'65 In attached crystals, reniform and botryoidal masses, having a drusy surface and columnar structure. Is found with other ores of copper, at Falkenstein near Schwatz, and other places in the Tyrol, Libethen in Hungary, the copper mines in the Banat, and near Saalfeld in Thuringia. From a comparison of several specimens of tirolite and orichalchite, it appears that the colour, which is blueish-green in tirolite and yellowish-green in orichalchite, is a character by which the two minerals may be distinguished. 346. KONICHALCITE.—Konichalcite; Breithaupt. Fracture splintery...granular. Translucent on the edges. Lustre vitreous, feeble. Intermediate between pistachio and emerald-green. Streak the same. Brittle. H = 4-25...4'76. o = 4-123. 2RAs + all, where 11 is Cu and Ca, and part of the As is replaced by 5. Analysis by Fritzsche :— Arsenic acid 31'65 Phosphoric acid 8'98 Vanadic acid 1'78 Oxide of copper 31-08 Lime 21-70 Water 6'49 In reniform masses, supposed to have been found at Hinojosa de Cordova in Andalusia. 347. ElILITE.—Ehlit; Hausmann, Haidinger. Cleavable in one direction. Lustre on the cleavage faces pearly. Verdigris-green. Streak the same, paler. n = 1-5...20. o =*3-8. Decrepitates when heated. Cu s P + 3II, phosphoric acid 24'1, oxide of copper ee-8, water 9 - l. Analyses of ehlite a, I, c from Ehl by Bcrgemann, d from Nischne-Tagilsk by Hermann:— z G