25 
tolite or made placed in this table, is referred by sii.ooN 
Werner to feldspar, under the name of hollow j>j,*7msT 
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 ma)^ be mention¬ 
ed the variety which from its resemblance to ro¬ 
sin is called colophonite. To this also belongs 
the elegant variety from Kamchatka, 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 
rhomboidal 
