NATURAL HISTORY. 
65 
GALLERY.] 
phate of baryta with bituminous matter; earthy baroselenite:—the 
wolnyne from Muzsay in Hungary, which is only a variety of sul¬ 
phate of baryta. 
Case 53. Sulphate of baryta and sulphate of strontia :—among the 
specimens of the latter salt, to which has been given the name of 
celestine, on account of the sky-blue tint of some of its varieties, the 
most remarkable are, the splendid groups of limpid prismatic crystals 
from La Catolica in Sicily, accompanied by sulphur ; those from the 
vicinity of Bristol, from St. Beat in the Dep. des Landes; those 
from Falkenstein in Tyrol; from the salt mines of Aranjuez; the 
acicular variety in the hollows of compact sulphate of strontia from 
Montmartre; in the fissures of flint and in chalk, from Meudon ; the 
radiated and fibrous celestine from Pennsylvania, &c. 
Case 54 contains the sulphates of lime , the principal varieties of 
w 7 hich are,—the selenite or sparry gypsum, in detached crystals and 
splendid groups, from Bex in Swdsserland, Montmartre near Paris, Ox¬ 
ford, &c. ; from St. Jago di Compostela, stained by red iron ochre; 
the fibrous gypsum wdth silky lustre, from Derbyshire, Sw r isserland, 
Montserrat; the granular gypsum or alabaster ; the compact variety, to 
which belongs the stalagmitical gypsum from Guadaloupe; the scaly 
gypsum (chaux sulphatee niviforme of Hally) from Montmartre ; com¬ 
mon earthy gypsum, &c .—Anhydrous sulphate of lime , or anhydrite , 
(also called cube-spar and muriacite ,) crystalline, fibrous, granular and 
compact; to the last of which belong some of the Italian varieties 
known by the name of bardiglio and bardiglione, as also the singular 
fibrous-compact variety, familiarly called tripe-stone (pierre des trippes), 
from the salt mines of Wieliczka. 
Case 55. Sulphates continued :— sulphate of magnesia , or epsomite , 
generally occurring in crystalline fibres : the fine variety from Calatayud 
in Arragon ; also the haar salz (capillary salt) of Idria belongs to this 
species, and the stalactic cobalt-vitriol, as it is called, from Herrengrund 
in Hungary, which is only sulphate of magnesia, coloured red by oxide 
of cobalt.— Polyhalite , a chemical compound of several sulphates, 
formerly mistaken for anhydrous sulphate of lime: compact and fibrous, 
from the salt formation of Berchtesgaden in Bavaria, and Ischel in 
Austria. — Sulphate of zinc, white vitriol or gallitzinite — Sulphate of 
iron, green vitriol, or melantherite, (a salt mostly produced by the de¬ 
composition of iron pyrites,) in beautiful large rhombohedral crystals, 
from Bodenmais in Bavaria, and massive, and in stalactic-fibrous forms, 
such as the specimens from the Rammelsberg, in the Hartz, where it 
also occurs in the form of yellow scales, known by the name of rnisy ; 
and as concretions of a red colour, called vitriol-roth or botryogene : 
the plumose vitriol ( federsalz ), and a botryoidal-reniform substance 
called bergbutter, are nothing but casual mixtures of sulphate of iron and 
hydrous sulphate of alumina.— Sulphate of copper , or copper vitriol: — 
the finest sky-blue specimens here deposited, together with the stalactic, 
fibrous and crystallized varieties, (the large group of crystals is artificially 
prepared,) are from Herrengrund in Hungary. There are also two or 
three scarce Siberian mineral substances placed in this Case (one of 
them, the brochantiie), which appear to be sub-sulphates of copper, but 
which stand in need of more accurate chemical examination.— Sulphate 
of uranium oxide or johannite, a very rare mineral substance, from Joa- 
