GALLERY.] NATURAL HISTORY. 55 
the more remarkable varieties of which are, that of a reddish yellow 
colour in porphyry, from Rochlitz, and the fine purplish blue variety 
from Planitz, formerly called terra miraculosa Saxonica, &c.— ser¬ 
pentine , the purer varieties of which (generally hydrates) are called 
noble serpentine : they constitute, in combination with primitive lime¬ 
stone, the verde antico and some other fine green marbles; among the 
varieties of the common serpentine, the best known are those from 
Baireuth and from Zoblitz in Saxony, where they are manufactured into 
vases and various other articles; serpentine with embedded 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, by some, been called 
kyalosiderite. 
Case 26. Silicate of zinc , called smitksonite (after the ingenious 
chemist who first distinguished its nature, and that of silicates in ge¬ 
neral), and also electric or siliceous 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,—with which is placed the rose-coloured substance 
called thulite , found with blue idocrase in Tellemarken, Norway.— Sili¬ 
cate of iron , to which belong the hisingerite, sideroschizolite, chloro - 
phaeite , stilpnomelane, gillingite , fayalite , and some other newly disco- 
covered mineral substances .—Silicate of copper , or siliceous malachite, 
also called chrysocolla and copper-green : to which may be referred 
the dioptase or copper-emerald, a scarce mineral from the Kirguise 
country in Siberia .—Silicate of bismuth , also called bismuth-blende, 
a mineral found in the form of hair-brown globules, from Schneeberg, 
Saxony .—Silicate of zirconia , to which belong Werner’s common zircon 
and some hyacinths of jewellers, from Ceylon, Auvergne, Chili, the 
Lake Ilmen in Siberia ; also the variety called zirconite from Friedricks- 
varn in Norway, &c.;—the blue zircon from Vesuvius .—Silicate of 
alumina: of these we have the kyanite or disthene, and the related 
mineral substances called sillimanite , bucholzite , and fbrolite, (one 
of the concomitant substances of the corundum of the Carnatic);—the 
halloysite, lenzinite , scarbroite f bole , and some minerals of similar aspect 
are also referable to the silicates of alumina, and among them may be 
particularized the cailinite or Indian pipe-stone from the quarry of 
Coteau du Prairie, brought from thence by Mr. Gatlin, the first w’hite 
man allowed by the Indians to visit it, and after whom the substance 
was named by Dr. Jackson. 
The Silicates with several bases are under arrangement in a series of 
Cases, nearly in the following order: 
Cases 27 and 28 will contain Jhe zeolitic substances: apophyllite , or 
ichthyophthalmite, in fine crystals, from Hesloe in Faroe ; with stilbite; 
with tessellite of Brewster, with poonalite of Brooke, &c.; a variety of 
apophyllite, formerly called albine , by Werner ;—chabasite or chabasie, 
in groups of primitive rhomboidal and modified crystals;—the variety 
