19 
banya in Transylvania, crystallized in cubes; the 
branched and stalactical calcedony from Iceland, 
&c.; the botryoidal from Ferroe; nodules includ¬ 
ing water (enhydrites) from Monte Berico, near 
Vicenza, where they occur in volcanic rocks: cut 
and polished pieces of calcedony, with black and 
red dendritic and other figures, commonly called 
mocha stones ; varieties with white, brown, and 
black, straightor curved lines $ onyx, sardo¬ 
nyx, &c. 
Case 7. Calcedonic substances continued. 
Among these are various specimens of the red and 
yellowish varieties of calcedony, called carnelian: 
striped carnelians, &c.— Heliotrope , an intimate 
mixture of calcedony and green earth, which, 
when containing disseminated particles of red 
jasper, is commonly termed blood-stone.—The 
beautiful and much esteemed variety of calce¬ 
dony, called clirysoprase: it has hitherto been 
only found at Kosemiitz in Silesia, accompanied 
by a siliceous earthy substance called pimelite , 
which, like the chrysoprase,owes its green colour 
to oxide of nickel.—By way of appendix to the 
calcedonic substances, are added afew specimens 
of the less compound varieties of agates , in which 
common calcedony, carnelian, and heliotrope 
respectively form the predominant ingredients. 
[See also the table-cases, Room I.]—Of fint, a 
well known mineral substance, several interesting 
varieties are deposited in this case. 
Case 8. contains principally opaline sub- 
c 2 stances. 
SALOON. 
Nat. Hist. 
