222 | Geology, Sc. of the Connecticut. 
38. Beryl. At Brookfield, Huntington and Haddam. (Si- 
liman.) Also at Litchfield. (Brace.) Also at Chatham. 
(Mather.) Also at Chesterfield, Mass. and Goshen. (Gibbs.) 
At Chesterfield and Haddam the crystals are sometimes 
from nine to twelve inches in diameter. At Goshen some 
are rose-colored. I found some crystals of beryl four or 
five miles north of the centre of Haddam. 
drons; color brownish red; size of a pea. Also at the 
same place, in dodecaedrons, truncated and striated on all 
their edges by hexaedral faces ; presenting thirty-six faces 
in’ the whole—color dull red—size of a common_ bullet. 
Also at the same place in talcose slate, in dodecaedrons of 
the same color, sometimes two inches in diameter. Also at 
Chesterfield, Mass. with sappar, in trapezoedrons ; color 
light rose-red—size ofa pea. Also in hornblende and mi- 
ca-slate, in Conway and Deerfield; color nearly black— 
crystals dodecaedrons—sometimes as large as a common 
bullet. Also in Conway, a loose mass, almost wholly made 
up of small black garnets in dodecaedrons—size less than 
one tenth of an inch in diameter, and with scarcely any dif- 
ference in the size of hundreds. Also at Marlborough, Ver- 
mont, one mile south of the mecting-house, in dodecaedrons 
of a cherry-red, in chlorite slate; but hardly the precious 
garnet. They eccurat this spot in immense quantities, 
and beautiful specimens may easily be obtained. A hun- 
dred other localities of the common garnet might be men- 
tioned; since it occurs in all our primitive rocks: but the 
most interesting have been noticed. 
I. ‘Pyrope. At Brimfield, Mass. in granite, the feldspar of 
which is light green—in rounded irregular masses of a del- 
