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COPPER-GREEN. 15. Copper-Green. Kupfergriin, Werner. Id.'Werner, Pabst. b. i. s. 96. Id. Jfid. s. 772—Mountain Green, Kirm. vol. ii. p. 134.—Kupfergriin, Estner, b. iii. s. 595. Id. Emm. b. ii. s. 260.—Le vert de Cuivre, ou la Chrysocolle, Brock, t. ii. p- 203.—Kupfergriin, Reuss, b. iii. s. 4)77- Id. Lud. b. i. s. 231. Id. Suck. 2“= r th. s. 210. Id. Bert. s. 393. Id. Mohs, b. iii. s. 287- Id. Leonhard, Tabel. s. 59-—Kiesel Malachit, Ilaus. Handbuch, b. iii. s. 1028—Chrysocolla, Ailcin, p. 91- 2d edit. External Characters. Its principal colour is verdigris-green, of different de grees of intensity, which in some varieties passes into emerald-green, and in others inclines to leek-green. It occurs massive, disseminated, and coating or incrust- ing malachite, and sometimes stalactitic, small remform, and small hotryoidal. Internally it is shining, passing into glistening, and the lustre is resinous. The fracture is small conchoidal. The fragments are indeterminate angular, and more or less sharp-edged. It is more or less translucent on the edges, and trans lucent in thin pieces. It is soft and very soft. It is easily frangible, and rather brittle. Specific gravity, 2.371, Ullm&nn, in Leonhard’s Ta- schenbuch, b. viii. s. 50-t. t , Chemical