GALLERY. ] 
NATURAL HISTORY, 
55 
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 
metalloid diallage or diallagite, also called schiller spar , from the 
Hartz, Salzburg, &c. ; the bronzite and the hypersih&ne or paulite ( La¬ 
brador-hornblende of Werner). To the silicates of magnesia is also 
referred the olivine, which, in its purer state, is denominated chrysolite 
or peridot, and when protoxide of iron is predominant, has, by some, 
been called hyalosiderite . 
Case 26. Silicate of zinc, called smiihsonite (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 willemiie, 
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 ceriie, from 
Bastnas, Sweden,—with w T hich is placed the rose-coloured substance 
called thulite, found with blue idocrase in Tellemarken, Norway.— Sili¬ 
cate of iron, to which belong th ekisingerite, sideroschizoliie, chlorophceite, 
chloropal, 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 fibrolite, (one 
of the concomitant substances of the corundum of the Carnatic);—the 
halloysite, lenzinite, scarbroite, 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 des Prairies, brought from thence by Mr. Catiin, the first white 
man allowed by the Indians to visit it, and after whom the substance 
was named by Dr. Jackson— agalmatolite (Werner’s bildstein, Haiiy s 
talc glaphique) employed by the Chinese for carving images, vessels, &c. 
The Silicates with several bases are under arrangement in a series of 
Cases, nearly in the following order: 
Cases 27 and 28 will contain the zeolitic substances : apophyllite, or 
ichthyophthalmite, in fine crystals, from Hesloe in Faroe ; with stiibite ; 
with tessellite of Brewster, with poonalite of Brooke, &c.; a variety of 
