26 
saloon, substances of the garnet tribe. Among the more 
nat7h"ist. remarkable varieties of the noble garnet is that 
in curved lamellar concretions, found massive in 
Greenland.—The pyrope, or Bohemian garnet, in 
rounded grains, &c.—The common garnet , the 
predominant colours of which are brown and 
green : among these may be mentioned the variety 
which, from its resemblance to rosin, is called 
colopkonite. To this also belongs the elegant 
variety from Kamschatka, denominated grossular, 
on account of the resemblance which its separate 
crystals bear to a gooseberry.—Trapezoidal and 
emarginated crystals of the black garnets, called 
melanite, found particularly in the neighbourhood 
of Frascati.—-The allochroite , also called splintery 
garnet, from Drammen in Norway.—The aplome , 
whose dodecahedral crystals differ from those of 
the garnet in being streaked in the direction of 
the short diagonal of their rhomboidal planes.— 
The cinnamon-stone from Ceylon, a mineral, 
which was supposed to contain zirconia, till a more 
accurate analysis proved it to be a substance nearly 
allied to garnet and vesuvian : some polished pieces 
of the same, being the true hyacinth.—Among 
the specimens of vesuvian or idocrase , the more 
conspicuous are the large beautiful crystals (the 
unibinaire of Haiiy) discovered by Laxmann on 
the banks of the Vikii in Kamschatka, imbedded 
in a steatitic rock ; those from Vesuvius, where 
this substance occurs accompanied by other vol¬ 
canic ejections, have, in Italy, obtained the trivial 
names 
