ALLUVIAL DIVISION, 
119 
It has been described as occurring in the bed of a stream, two miles east of Durham 
meeting-house in Greene county, in “ coarse slate ” filled with vegetable impressions.* 
9. Orpiment, and Arseniate of Iron. 
Two localities of arseniate have already been mentioned under the head of Sulphate of iron, 
one at the arsenic mine commonly called the “Silver mine,” near Pine pond, in Kent, Putnam 
county ; and the other about a half to one mile from Boyd’s corners in Kent, on the road to 
Coldspring. This locality may not be found again, as it has been covered over in making 
the road. The arsenical sulphuret of iron was encrusted with a green arseniate of iron, that, 
when heated wdth a blowpipe in the deoxidizing flame, gave abundant white, garlic fumes. 
The arsenic mine, at the time of my visit, had been recently cleared out, after having been 
filled with rubbish and water for more than half a century, and the timbers and walls of the 
mine were incrusted with a yellow sulphuret of arsenic. 
Orpiment was also found by Dr. W. Horton, in the arsenical sulphuret of iron at the loca¬ 
lity near Amity in Warwick, Orange county. 
10. Bog Ore, and Wad. 
In Columbia county, bog iron ore occurs in the low grounds in the valley of the Kline kill, 
three or four miles east of Kinderhook, on Mr. Peter Gardenier’s land. It forms a layer of 
about eight inches thick, under the soil of the meadow. Mr. G. thinks it extensive. The ore 
is more or less mixed with gravel, but some of it is of good quality. Bog ore is said to occur 
in the meadows near the Sulphur springs, in the north part of Claverack. It is also found on 
the farm of Daniel Falls, and on several of the adjacent farms, in a tract of meadow land. It 
is supposed to be in too small quantities for extensive use. Some of the ore has been smelted 
at Kemble’s furnace at Coldspring, in Putnam county. 
Iron ore, probably bog ore, is said to exist in Chatham, east of Groat’s corners, on Mr. 
Burgess’ farm. 
Rev. Mr. Woodbridge, of Austerlitz, informed me of a deposit of bog ore, one and a half 
miles from that place, on the farm of Mr. Asa Calkins. 
In Dutchess county, bog ore is said to occur in a meadow two miles west of Pine-Plains. 
At Poquaick, in Beekman, bog ore is also stated to be found. 
In Westchester county, bog ore was seen on Judge Kinney’s farm, one and a half miles 
south of Sing-Sing. It was about eight inches thick, but it seemed to occupy‘an area of only, 
a few square rods, and in an economical point of view is scarcely worth notice. As a mineral, 
it is well characterized, and makes beautiful cabinet specimens. 
Red Ochre and Red Chalk occur on H. I. Cruger’s farm, in Cortlandtown. f It is presumed 
to be abundant from the appearances at the locality. It has been opened a little, by persons 
* Robinson’s Catalogue of American Minerals, p. 130. 
