24 
SALOON. 
Nat. Hist. 
it exhibits) are several from the transition syen¬ 
ite of Laurwig in Norway.—-The adularia (which 
stands in the same relation to common feldspar 
as rock crystal to common quartz) is principally 
found on Mount St. Gothard, but not in the val¬ 
ley of Adula, from which its name is improperly 
derived :—this variety when cut en cabochon 
(such as the stone set in a ring) is commonly 
called moon-stone ; modifications of crystals of 
this variety.— Common feldspar , variously crys¬ 
tallized and massive, among the latter of which 
may be particularized the fine green variety from 
Siberia, called amazon-stone; feldspar with im¬ 
bedded fragments of quartz (graphic stone) from 
Siberia, &c.—To these are added a few speci¬ 
mens of disintegrated feldspar, which passes into 
porcelain earth.—The chiastolite or made,placed 
in this table, is referred by Werner to feldspar, 
under the name of hollow spar.— Icespar .— Pe- 
lalite and spodumen or triphane, substances in 
which lithium, a new mineral alkali, has been 
discovered.— Indianite 9 one of the matrices of 
the common corundum of the Carnatic.— Albite . 
—As intermediate between the contents of this 
and those of the next case may be considered 
the leucite (amphigene of Haiiy), of which se¬ 
veral varieties are here deposited. 
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 massive in 
Greenland* 
