1$3 
from Roehlitz, and the fine purplish blue variety from 
Planifz, formerly called terra miraculosa Saxonica, &c. 
— serpentine , the purer varieties of which (generally 
hydrates) are called noble serpentine : they constitute, 
in combination with primitive limestone, the verde 
antico and some other fine green marbles; among the 
varieties of the common serpentine, those from Bareuth 
and from Zbblitz in Saxony are best known, where 
they are manufactured into vases and various other 
articles; serpentine with imbedded garnets, magnetic 
iron-stone, asbest, &c.—the marmolite of Hoboken in 
New Jersey likewise belongs to serpentine.—With these 
is also placed the olivine, which, in its purer state, is 
denominated chrysolite or peridot , and when protoxide 
of iron is predominant, has been called hyalosiderite. 
Case 26. Silicate of zinc , called also electric or si¬ 
liceous calamine, the finest specimens of which are those 
from Siberia and Hungary; the variety called willemite , 
from Aix-la-Chapelle.— Silicate of manganese, of which 
there are several varieties (some of them only mechanical 
mixtures of this silicate, of carbonate of manganese, and 
quartz), which have received particular names, such as 
allagite, rhodonite, &c.— Silicate of cerium or cerite , 
from Bastnas, Sweden.— Silicate of iron , to which be¬ 
long the hisingerite , sideroschizolite , chlorophceite , and 
stilpnomelane. — Silicate of copper , or siliceous ma¬ 
lachite, formerly called chrysocolla and copper green ; 
to which is also referred the dioptase or copper eme¬ 
rald, a scarce substance from the Kirguise country in 
Siberia.— Silicate of zirconia , to which belong Wer¬ 
ner’s common zircon and some hyacinths, from Ceylon, 
Auvergne, Chili, the Lake Ilmen in Siberia:—and the 
variety called zirconite from Friedricksvarnin Norway, 
&c.the blue zircon from Vesuvius.— Silicate of alu¬ 
mina ; to this belongs the kyanite or disthene, and its 
varieties, the hucholzite and the sillimanite. As ap¬ 
pendix to these, the remainder of this Case is to 
contain hydrous silicates of alumina, such as the 
fahlunite, varieties of lithomarge (now placed in Case 
25), 
LONG 
GALLERY. 
Nat. Hist. 
