gallery.] natural history. (Minerals.) 67 
and some hyacinths of jewellers, from Ceylon, Auvergne, Chili, the 
Lake Ilmen in Siberia ; also the variety called zirconite from Friedricks- 
varn in Norway, and the ostranite from the same locality;—the blue 
zircon from Vesuvius.—To these is added the thorite of Berzelius, 
from Brevig in Norway, a new mineral in which the metal thorium 
was first discovered.— Silicate of alumina: of these we have the 
andalusite , the kyanite or disthene, and the related mineral substances 
called sillimanite, worthite , bucholzite, and fibrolite (one of the con¬ 
comitant substances of the corundum of the Carnatic) ;—the allophani y 
the lialloysite , lenzinite , scarbroite , bole , and some minerals of similar 
aspect are also referable to the silicates of alumina; and among these 
may be particularized the catlinite or Indian pipe-stone from the quarry 
of Coteau des Prairies, brought from thence by Mr. Catlin, the first 
white man allowed by the Indians to visit it, and after whom the sub¬ 
stance w r as named by Dr. Jackson— agalmatolite (Werner’s bildstein, 
Haliy’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 to 29 contain zeolitic substances: apophyllite , or ichthy- 
ophthalmite, in fine crystals, from Hesloe in Faroe; with stilbite; 
with tessellite of Brewster; with poonalite of Brooke, &c.; a variety of 
apophyllite, called albine by some mineralogists;— chabasite or chabasie, 
in groups of primitive rhomboidal and modified crystals;—the variety 
called haidenite from Baltimore ;— mesotype from Auvergne, Faroe, 
&c., to which are also referred the natrolite of Klaproth, the needle- 
stone of Werner, the scolicite , the mesolite, krokalite, &c. ;— anal - 
cime, among the crystallized varieties of which are remarkably large 
specimens of the trapezoidal and other modifications from Fassa 
in Tyrol;— stilbite and heulandite , or foliated zeolite in splendid speci¬ 
mens from Iceland, Faroe, and Scotland ;~brewsterite;—laumontiteor 
lomonite, also called efflorescent zeolite, because most of its varieties are 
subject to decomposition by exposure to the air;—a suite of speci¬ 
mens of comptonite from Vesuvius, lining the cavities of a pyroxenic 
lava, &c., accompanied by gismondine and other crystallized substances; 
together with thomsonite, which is supposed to be only a variety 
of comptonite ;—gmelinite or hydrolite ;— levine , and some other scarce 
zeolitic substances. 
Case 29. To the same family of minerals belongs the prehnite, the 
grass-green variety of which, discovered in South Africa by the Abbe 
Rochon, has been mistaken for chrysolite, chrysoprase, and even emerald ; 
—to this also belongs the koupholite of Vauquelin. The substance known 
by the name of Chinese jade or you-stone , (kyonk tshein of the Bur¬ 
mese,) is likewise placed with prehnite, to which it has been referred by 
Count Bournon; but no chemcal analysis has as yet been given of it: 
(among the vessels w T rought out of it in this Case is a cup, the 
gift of the king of Ava to Lieut.-Col. Burney when British Resi¬ 
dent at that court, and by him presented to the British Museum.) 
With this is placed the harmotome or cross stone, (also called 
andreolite , after Andreasberg, in the Hartz, where it was first dis¬ 
covered,) divided into baryte-harmotome and potassa-harmotome, to 
which latter are to be referred the Vesuvian minerals called zeago - 
