117 
stone, &c— pinite, crystallized in regular hexagonal 
prisms; and gieseckite, from Greenland, which appears 
to be a variety of it;— fahlunite, likewise considered as 
related to the latter, though but little is known of its che¬ 
mical composition. 
Case 33. This and part of the following Case chiefly 
contain substances related to hornblende or amphibo¬ 
lic minerals, among which may be specified the basaltic 
and common hornblende, including the pargasite; —the 
actinolite or strahlstein (divided by Werner into the 
glassy, common, and fibrous varieties');—the gramma - 
tite or tremolite (so called from Val Tremola, where, 
however, it is not found), among the specimens of which 
are the fine, fibrous varieties, resembling asbest; the 
glassy tremolite, in dolomite and granular limestone, 
he. — Cummingtonite . 
Case 34. Part of this Case is filled with the mine¬ 
ral substances called asbestine , many of which appear 
to pass into some of the varieties of amphibole in the 
preceding glass Case. Among these may be observed 
specimens illustrative of the transition from a very close 
to a loose, fibrous structure;—several varieties of the 
flexible asbest or amianth , with some antique incom¬ 
bustible cloth, paper, he. made of it;—the varieties 
called common and schiller-asbest, mountain wood, 
mountain cork, or nectic asbest, he., separate and in 
combination with other substances;—-the blue and yel- 
loiv asbest from South Africa to which the name of kro- 
kydalite has been given. The remainder of this Case 
contains pyroxenic minerals :-—augite , in separate cry¬ 
stals, and imbedded in lava from Vesuvius, together 
with groups of well-defined crystals from Arendahl in 
Norway, where this substance occurs in primitive rocks; 
—the granular variety called coccolite; —the varieties 
of diopside , at first considered as a distinct species, in¬ 
cluding the mussite and alalite from Piedmont; —the 
sahlite or malacolite, to which also belongs the baika- 
lite , of which a few fine specimens are here deposited ; 
the pyrgome or fassaite , and the euchysiderite , also 
called 
LONG 
GALLERY. 
Nat. He t. 
