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COMMON APATITE. 209 white, reddish-white, and greenish-white: from greenish- white it passes into mountain-green, celandine-green, leek-green, emerald-green ? asparagus-green, pistachio- green, and olive-green. It occurs also hyacinth-red, flesh-red, rose-red, and pearl-grey, from which it passes into violet-blue, and lavender-blue, and seldom into' in digo-blue. Sometimes it is pale wine yellow, and yel lowish-brown. Frequently several of these colours occur in the same piece. It seldom occurs massive and disseminated ; generally crystallised in the following figures ; I. Prism. Six-sided prism *. a. Perfect, fig. 125. b. With truncated lateral edges -f-, fig. 126. c. With truncated lateral and terminal edges %, fig. 127. d. With truncated terminal edges ||, fig. 128. e. With truncated terminal edges and angles §, fig. 129. f. With bevelled terminal edges and truncated angles. g. With rounded edges, so that the prism appears cylindrical. A. Acuminated on one extremity with six planes, which are set on the lateral planes. I-n this figure, the apex of the acuminatien, all the Vol. II. 0 angles, * Chaux phosphatee primitive, Hauy. + Chaux phosphatee peridodccaedre, Hauy. i Chaux phosphatee emarginec, Hauy. II Chaux phosphatee annulairc, Hauy, $ Chau* phosphatee unibuiairc, Hauy,