33 
San-Felippe in Tuscany, where moulds of medals, saloon. 
gems, Sec. are placed in convenient situations to Nat. Hist 
receive the calcareous deposition, — As a continua- 
tion of the compact limestone in the last case, 
we have in this, the shell limestone, the most 
esteemed variety of which is that from Carinthia, 
called lumachella or fire marble. 
(Case 23.) Of the carbonates of lime deposit- 
ed in this case the most remarkable are the va- 
rieties of slate spar (Schiefer-Spath of Werner), 
those of brown spar, and particularly those of 
arragonite or eccentric limestone, among the 
crystallized varieties of which is that from Xglo in 
Hungary, called Igloit by some mineralogists ; 
also magnificent specimens of the remarkable 
coralloid variety of arragonite from Eisenertz 
in Styria, formerly called flosferri. 
{Case 24.) Contains the iiuates and phosphates 
of lime. — Among the numerous varieties of fluor 
spar, may be particularize 1 the rose coloured 
primitive crystals from Chamouni ; the chloro- 
phane from Siberia ; the singular, pale sel ad on- 
green, octohedral variety from Beeralston, in De- 
vonshire, with white earthy fluor interposed be- 
tween its laminae ; earthy and compact fluor, 
&c. — Among the phosphates of lime may be ob- 
served several very interesting modifications of 
crystallization of the apatite of Werner, which 
l has 
