31 
employed by the Chinese for carving images, saloon. 
vessels, &c.—The Iceffekil or meerschaum, from nat.Hist. 
Natolia, of which pipe bowls are made ; and a 
related substance, called keffekilite by Dr. Fischer, 
who discovered it in the Crimea.— Lithomarge , 
the more remarkable varieties of which are, that 
of a reddish yellow colour, from Rochlitz, in 
porphyry ; the fine purplish blue variety from 
Planitz, called terra miraculosa Saoconica by old 
writers.— Fuller 9 s earth.—Bole ; green earth , &c. 
(Cases 19 and 20.) In these and the three 
following table-cases are deposited the various 
carbonates of fee.—Crystallized carbonate of 
lime or calcareous spar ; specimens illustrative 
of the cleavage, supernumerary joints, colour, 
&c.; primitive rhombohedron; various secon¬ 
dary rhombohedrons : among these the most 
common, but not the least striking, is the inverse 
rhombohedron, so called from being as it were 
an inversion of the primitive ; the same with a 
considerable admixture of quartz, commonly 
called crystallized sandstone of Fontainebleau. 
Prismatic and pyramidal modifications of the 
same, among the former of which are the beau¬ 
tiful varieties from the Hartz, Salzburg, &c.* 
(Case 21.) The same continued : This case 
contains specimens of the lamellated varieties of 
* For a greater variety of the modifications of crystallized carbonate 
of lime, see the British Collection, (Room X.) especially Derbyshire 
and Cumberland, 
carbonate 
