m 
natural history. (Minerals.) 
[north 
panied and partly coloured by green carbonate of copper; the crystallized 
varieties from Siberia, Mies in Bohemia, &c.;—the pulverulent va¬ 
riety, &c.— Carbonate of bismuth, from the principality of Reuss.—- 
To which are added some specimens of the rare carbonates of cerium, 
as coating on cerite,from Bastnas ;—of yttria on orthite, from Ytterby, 
Sweden, &c. 
Case 50. In this and the following Case are deposited the car¬ 
bonates of copper, viz. the blue copper , or copper-azure , the more re¬ 
markable varieties of which are those from Chessy, and from the Ban- 
nat, combined with various substances;—the earthy varieties, some of 
which have been used as pigment sold under the name of mountain- 
blue ;—those crystallized varieties which, passing from the state of blue 
into that of green carbonate, have, by Hatiy, been called cuivre car¬ 
bonate epigene. 
Case 51. The green carbonates of copper, among which may be 
specified the fine and rare varieties of fibrous malachite , in acicular crystals, 
and massive, with fibrous structure and velvety appearance, accompanied 
by carbonate of lead, &c.; and, among the specimens of compact mala¬ 
chite , those very characteristic and splendid ones from the Gumashevsk 
and Turja mines, in the Uralian mountains. 
Case 52. Besides the nitrates, (such as the nitrate of potassa, na¬ 
tive nitre or saltpetre, found as efflorescence, mixed with other salts, 
and as crystalline crusts, from Pulo di Molfetfca in Apulia, from near 
Burgos in Spain, &c. ; nitrate of soda, §*c.;) this case contains part 
of the sulphates :— sulphate of soda, or alauber salt •— thenar dite, an 
anhydrous sulphate of soda, found in crystalline crusts, at the bottom of 
the briny waters of Espartines in Spain, five leagues from Madrid;— 
glauberite, a mineral composed of the anhydrous sulphates of soda and 
of lime, from the salt mines of Villarubia and Aranjuez in Spain, em¬ 
bedded in salt and clay. The rest of this, with half of the next case, 
is occupied by sulphates of baryta or baroselenite ( heavy-spar ), 
among which may be particularized the splendid groups of crystal 
from Schemnitz in Hungary, and Clausthal in the Hartz, Travers- 
ella in Piedmont, the large very perfect crystals from Dufton, Cum¬ 
berland, &c., the curved-lamella varieties; the columnar, resem¬ 
bling carbonate of lead; the radiated, to which belongs the Bolognese 
spar, from Monte Paterno, near Bologna, from Bavaria, &c. ; the 
beautiful variety called ketten-spath, or chain-spar, from the Hartz; 
the fibrous and the granular varieties ; the compact, called barytic or 
ponderous marble, &c. ; the cawk of Derbyshire and Staffordshire ; 
fetid baroselenite or hepatite, an intimate mixture of sulphate of baryta 
with bituminous matter ; earthy baroselenite: —also the wolnyne from 
Muzsay in Hungary is only a variety of sulphate of baryta. 
Case 53. Sulphate of baryta continued, scad sulphate of strontia :— 
among the specimens of the latter salt, to w r hieh 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 ia 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. 
