358 Mineralogical Journey. 
scarcity in which they exist. From the accompanying minerals, 
(which were black Tourmaline and Mica,) I was led to infer that 
they might have come from one of the high ledges, situated not far 
from the Beryl mountain, in a south-easterly direction, as I there ob- 
served several veins of black Tourmaline. ‘The most perfect of the 
two crystals which I saw, Mr. G. was obliging enough to permit me 
to take along with me to New Haven, for the purpose of submitting 
its angles to goniometrical admeasurement. 
It is a double crystal, the prisms coinciding upon the broad lateral 
planes, parallel to the prismatic axis, and presenting the re-entering 
and salient angles, as usual in such crystals. In color, lustre, &e. it 
resembles other crystals of the same substance. Its form, so far as 
it is perfect, will be perceived from the subjoined figure. It weighs 
2035 grs. Troy, equal to 44 oz. of this standard. As respects di- 
mensions, therefore, it isin full keeping with the beryls above de- 
seribed. The other crystal which I saw, was but litle inferior in 
size, though less perfect as a crystal. It is much to be desired, that 
a knowledge of the locality may be recovered, as it promises from 
these specimens, to furnish us with an abundant supply of this hith- 
erto scarce substance. 
Fig. 1. 
Inclination o 
We aROEOs cate Sch eh ae si OM 
nee eae Ee: 
‘<.O0 Gre os es Oe ee 
PMD i eke ESO 
aonb... a ee ae ane © 
eonedl §asis. So Grek ino ARB 
GUSH pte er etse tay nel ancir Gai 1B SO 
BEER 3. Vermont Zircon. 
~The very interesting mineral I am now about to describe was not 
procuted upori our journey; but as: its locality is not very remote 
from the region we visited, it will not, Iam persuaded, be misplace 
to connect my account of it with the present memoir. bissbl | 
The specimens described, were forwarded last autumn in @ 685° 
of Vermont: minerals from Prof. W. C. Fowler of Middlebury cok 
