476 ANTIMONY, Ihe fracture is foliated, which sometimes passes into broad radiated. It appears to have a single cleavage. ^ The fragments are indeterminate angular, and not par ticularly sharp-edged. It occurs in coarse, small, fine, and usually longish granular distinct concretions. It is soft. It is not particularly brittle. It is easily frangible. It is heavy. Specific gravity, 4.368, Kirwan. Third Kind, Radiated Grey Antimony-Ore. Strahliches Grauspiesglaserz, Werner. Id. Werner, Pabst. b. i. s. 1.98. Id. Wid.. s. 91-4—Striated sul phurated Antimony, Kinu. vol. ii. p. 249—Strahliches Grau spiesglaserz, Emm. b. ii. s. 374—L'Antimoine gris rayonne, Brock t. ii. p. 374—Strahliches Grauspiesglaserz, Reuss, b. iv. s. 870. Id. Lud. b. ii. s. 27.9- Id. Moks, b. iii. s. 69O. Id. Leonhard, label, s. 79.—Antiinoine sulphure pure ray- ] e, Brong. t. ii. p. 127.—Strahliges Graubraunsteinerz, Karsten, Tabel. s. 72. Id. Ilaus. s. 75. External Characters. - The colour is light lead grey, and it is sometimes tar nished with an azure-blue colour, or it exhibits the co lours of tempered steel, or it is pavonine. It occurs massive, disseminated, and crystallised in the following figures: 1. Oblique