NATURAL HISTORY. 
191 
GALLERY.] 
columnar, resembling carbonate of lead; the radiated, to 
which belongs the Bolognese spar, from Monte Paterno, 
near Bologna, from Bavaria, &c.; the beautiful variety 
called hetten-spath , or chain-spar , from the Hartz; the 
fibrous and the granular varieties; the compact, called 
barytic or ponderous marble, &c.; fetid baroselenite or 
hepatite, an intimate mixture of sulphate of baryta with 
bituminous matter ; earthy baroselenite : also the wolnyne 
from Muzsay in Hungary, a variety of sulphate of ba¬ 
ryta. 
Case 57 contains the sulphates of lime , the principal 
varieties of which are,—the selenite or sparry gypsum, in 
detached crystals and splendid groups, from Bex in Swiss- 
erland, Montmartre near Paris, Oxford, &c.; from St. 
Jago di Compostela, stained by red iron ochre; the fibrous 
gypsum with silky lustre, from Derbyshire, Swisserland, 
Montserrat; the granular gypsum or alabaster; the com¬ 
pact variety, to which belongs the stalagmitical gypsum 
from Guadaloupe ; the scaly gypsum (chaux sulfatee nivi- 
forme of Haiiy) from Montmartre; common earthy gyp¬ 
sum, &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 bar- 
diglione , as also the singular fibrous-compact variety, fami¬ 
liarly called tripe-stone (pierre des trippes), from the salt 
mines of Wieliczka. 
Case 58. 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 sta- 
lactic cobalt-vitriol, as it is called, from Herrengrund in 
Hungary, which is only sulphate of magnesia, coloured red 
by oxide of cobalt.— Poly halite, 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.— Sul¬ 
phate of zinc, white vitriol or gallitzinite.—Sulphate of 
iron, green vitriol, or melantherite, (a salt mostly pro¬ 
duced by the decomposition of iron pyrites,) in beautiful 
large rhombohedral crystals, from Bodenmais in Bavaria, 
