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LIBETHENITE. 507 cb 90° 0' sb CO O 33' nb 70 34 xb 69 38 nn 141 8 me 84 13 mb 68 42 mbe 83 14 mm 117 24 xbc 65 17 FIG. 505. Combinations, cnmb, xcnmsb. The faces m, s striated pa rallel to their intersection with each other; c, n striated parallel to their intersections with each other. Cleavage. , very perfect and easily obtained. Transparent...translucent. Lustre vitreous; b, pearly. White, inclining to yellow. Streak white. Sectile. Flexible in thin plates, ji = 2'0...2'5. g — 2-04...2’73. In the matrass yields water. In the outer flame melts into ft white enamel. On charcoal in the inner flame emits fumes of arsenic, and melts into a semi-transparent globule. Soluble without effervescence in nitric acid. Ca’As + oil, arsenic acid 61‘09, lime 24'90, water 24'01. Analyses of pharmacolite a from Wittichen by Klaproth, from Andreasberg b by John, c by Turner, d from Kiechelsdorf by Stromeyer, e from Gliicksbrunn by Eammelsberg:— Arsenic acid Lime Magnesia . . Oxide of cobalt Water Is found in minute fibrous crystals, botryoidal masses, and earthy, at Joachimsthnl in Bohemia, Wittichen in Baden, An dreasberg in the Harz, liiechelsdorf and Bieber in Hcssia Gliicksbrunn in Thuringia, Markirchen in Alsace. a b C d e . 60’54 4568 1 ■ 79-01 40-97 51-68 27-28 J 24-05 23-59 — 3-22 — — — — l’OO 1-43 . 24'40 23-80 20-99 23-98 23-40 3S7. LI BET IIENITE. —Phosphate of copper; Phillips. Cuivre phosphate; Dufrenoy. Diprismatischer Oliven-Malachit • Molis. Libethenit; Huusmann, Ilaidinger. Prismatic. 011,010 = 53° 50'; 101,001=35° 4'; 110,100=46° 10'. a 100, b 010 cleavage, e 101, m 110, t 120, s 111. J truncates the edge mm ; t truncates the edge bm. z 2