25 
tolite or made placed in this table, is referred by saloon. 
Werner to feldspar, under the name of hollow Na 7"hist. 
spar. — As intermediate between the contents of 
this and those of the next case may be consider- 
ed the leucite (amphigene of Haiiy), of which 
this case contains several crystals belonging to 
the trapezoidal modification, in their fresh and 
altered state, both loose and imbedded in lava. 
(Case 13.) Is principally appropriated to the 
substances of the garnet tribe. Among the 
more remarkable varieties of the noble garnet is 
that in curved lamellar concretions, found mas- 
sive 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 mention- 
ed the variety which from its resemblance to ro- 
fin is called colophonite. To this also belongs 
the elegant variety from Kamschatka, denominat- 
ed grossular, on account of the resemblance its se- 
parate crystals bear to a gooseberry. — Trapezoi- 
dal and emarginated crystals of the black garnets, 
called melanite, found particularly in the neigh- 
bourhood of Frascati. — The allochroite, also 
called splintery garnet, from Drammen in Nor- 
way. — The aplome, whose dodecahedral crystals 
differ from those of the garnet in being streaked 
in the direction of the short diagonal of their 
K rhomboi dal 
