177 
TAB. CCLXXXIX. 
CALX carbonata. 
Coral-like Carbonate of Lime. 
Div. 2. Imitative. 
ee 
We read frequently with astonishment of vast Coral rocks 
in different regions of the globe, when it is only our neg- 
ligence of the productions of our own country that makes 
us wonder, since every Limestone quarry and the adjacent 
places teem more or less with Corallines of various species, 
from Wiltshire to Yorkshire, Cumberland, &c., and even to 
Scotland and Ireland. Thus our island is almost all Coral 
rock externally, as will be shown, although some species 
are more local than others. at & 
The specimen from which the upper figure is taken re- 
sembles Madrepora radiata of Solander and Ellis, tab. 47, 
Jig. 8, but the artist seems to have forgotten the little in- 
tervening lamellated stella, or perhaps the specimen had 
not them. Gmelin and Solander do not mention any ha- 
bitat. M. cavernosa of Espers Pflanzenthiere seems to be- 
long to the same Coral. It has so exactly the appearance 
of a recent Coral, that it became quite necessary to show 
that it really was a mineral, in order that mineralogists may 
if possible be guarded in their conclusions, and examine 
further than the commen external structure, however ap- 
parently decisive. 
The organic appearance in this specimen is given by 
crystallized Carbonate of Lime, and is distinguished by its 
VOL, III. N 
