IRON. 
395 
is an exceedingly interesting locality, not only on account of the minerals which it affords, 
but of the apt illustration which it presents of the changes produced in the mineral kingdom 
through the influence of chemical agencies. 
Putnam County. This mineral occurs in many parts of this county, but only two locali¬ 
ties are of much importance. They are within a few rods of each other, and are about four 
or five miles northwest from Carmel, and near Brown’s serpentine quarry in the town of 
Kent. The one is an old mine hole, from which silver is said to have been obtained. The 
shaft, which is about forty feet deep, was cleared out a few years since. The yellow pulveru¬ 
lent sulphuret of arsenic covered the sides of the shaft and the timbers wherever they had 
been immersed in the water, and no doubt resulted from the decomposition of the arsenical 
pyrites. Mr. Mather expresses the opinion that the latter mineral is not in the form of a vein, 
but that it exists in a mass, and he supposes it may be in great quantitiy.* He also states 
that a loose mass of arsenical iron pyrites, weighing from two to three hundred pounds, said 
to have been dug out of the road, was seen about three miles west of the mine above men¬ 
tioned, and perhaps a mile from Boyd’s corners in the town of Kent. 
The other locality is about twenty rods from the preceding, and may be a continuation of 
the same deposit. It has not 
been much worked, but speci¬ 
mens may be obtained, of both 
the crystallized and massive va¬ 
rieties. The forms observed in 
this vicinity are those repre¬ 
sented in Fig. 468, unitaire of 
Haiiy ; Fig. 469, unibinaire of 
Ilaiiy; and Fig. 470. M on 
M' 111 0 18'; M on a 136° 20'; 
M on l 115° 32'; l on l 80° 
Fig 468. 
Fig. 469. 
24 7 ; l on z 
118° 46k 
160° 49 / 
z on z 
As arsenic is converted to various uses in the arts, it is not improbable that these localities 
may hereafter be advantageously wrought. 
Arsenical iron pyrites occurs at Monroe and Chatham in Connecticut, and at Worcester in 
Massachusetts ; but the most interesting deposit is said to be found at Franconia in New- 
Hampshire. 
Nnv-York Geological Reports, 1839. 
