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72 Notice of a Locality of Zeolites. 
natrolite. The apophyllite is of a very fine quality, both as te- 
gards crystallization and lustre. A specimen or two of psendo- 
morphous crystals was also obtained here, supposed to be all that 
were found at Bergen Hill, composed of apophyllite and the black 
matter which oceurs in some of the veins of the greenstone. 
The crystals have the regular form of the apophyllite. . : 
_ No. 14, farther on, same side of the cut, is a vein of carb. lime, 
which is unworthy of notice but for the primary form of apophyl- 
lite, which is found about six feet from the top of the cliff. From 
the appearance of this vein, however, I think that a specimen in 
my collection was thrown out of it. It is about three or four 
inches thick, and eight long, presenting a fine surface, almost en- 
tire, of the secondary form of apophyllite. 
All of these localities, with but few exceptions, were examined 
by standing on a ladder which was carried about for the purpose, 
and it is possible, though not probable, that further scrutiny will 
develope others. 
Most of the specimens of this place have been found among 
the heaps of loose stones which lie on the hill near the road, as 
well as on the wharf at Jersey City, which, however, is now filled 
in, and all attempts to obtain any more from the latter source will 
be vain. Datholite I believe to have been the most common ; 
massive apophyllite, from one to two inches thick ; Thomsonite, 
commonly half an inch thick, in veins—some an inch, and a few 
specimens in my possession, two inches thick. A few specimens 
only of stilbite have been found loose, and the quantity obtained 
from its localities was not very great. All the epistilbite was 
procured at No. 4, except when associated with datholite, and, ip 
these cases, the specimens are of great beauty. Some of them 
are of large size, presenting surfaces of from four to six inches 
square. ‘The natrolite is quite rare, a few specimens only having 
been taken from the cliff, at the localities before described, with — 
the exception of one which was found loose. 
Brown Thomsonite, in fine masses, some of it two inches 
thick; and well crystallized, is exhausted—we could not find it 
in place, after a fruitless search. 
The chabasie of this locality is very inferior, and none of the é 
crystals are perfect except very small ones. 
One of the loose masses had datholite, stilbite, analcime, ha 
basie, apophyllite, (primary form,) and cale-spar upon it, forming ~ 
an unusual association. 4 
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Repent cea e sc meee 
