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212 APATITE FAMILY. Second Subspecies. Conchoidal Apatite or Asparagus-Stone. Muschlicher Apatit, Hausmann. Spargelstein,} Warner, Chrysolith ordinaire, ou proprenient dite, De Lisle, t. ii. p. 271. —Chrysolithe, De Born. t. p. 68. 2. E. a. 3.—Spargelstein, Emm. b. iii. s. 359-—La Pierre d’Asperge, Broch. t. i. p. 586.— Muschlicher Apatit, Reuss, b. ii. 2. s. 358.—Chaux pliosphatec crysolithe, Brong. t. i. p. 240.—Muschlicher Apatit, Ilaus. s. 123. Id. Lcnz, b. ii. s. 808, Id. Okcn, b. i. s. 397- External Characters. Its colours are mountain-green, leek-green, grass-green, pistachio-green, asparagus-green, and siskin-green, which passes into sulphur-yellow, and wine-yellow. It also oc curs sky-blue, greenish and yellow grey, and clove- brown. It occurs sometimes massive and disseminated; hut most frequently crystallised, and in the following figures: 1. Equilateral, longish, six-sided prism, rather acute ly acuminated with six planes, which are set on the lateral planes *, fig. 130. 2. Sometimes the acumination ends in a line •}“. 3. The same figure, truncated on the lateral edges of the prism, fig. 131. The crystals are middle-sized, small, and very small; sometimes longitudinally streaked, and sometimes tra versed by cross rents. Externally * Chaux pbosphatee pyramidec, Hauy. ■f Chaux phoaphatce cunciformc, Hauy. J Chaux phoaphalce didodecatdrc, Hauy.