( 353 ) • r / f r . r: r’ . : FOURTH SUBSPECIES. Foliated Chlorite. Blattriger Chlorit.—Werner. External Characters. . Colour is intermediate between dark mountain and blackilh green. Occurs maffive, diffeminated, but alm’oft always Gr yftallized. i. Six-fided table. o., Cylinder terminated by two cones. 3. Two truncated cones joined bafe to bafe. If we fuppofe the fix-fided table N° 1. to revolve ar °und an axis which pafles through its two oppofite an gles, the figure N° 2. will be formed; but if it revolves around an axis which paffes through the two oppofite fides, the figure N° 3. will be produced. Externally the furface is ftreaked and gliftening. Cryftals are generally fmall and middle fized, and °ccur fingly implanted. Internally its luftre is Alining and pearly, ap proaching to refinous. Fratture