PRIMARY ROCKS. 539 
(transparent ones in the cavities of the augite ; sphene crystallized, pyritous copper ore and 
carbonate of copper in small particles ; sahlite, coccolite, and diopside. 
2. About one-quarter of a mile north of the road leading from West-Point towards Round 
pond, about half a mile northeast of Mr. Kronkite’s or Mrs. Green’s, about three and a half 
miles from West-Point. It is by the side of a wood road, on the side of the mountain, and 
contains black mica and masses of glassy felspar, and some of fine adularia. Good specimens 
cannot be obtained without blasting, as most of the loose masses by the road-side have been 
broken up. It is at an elevation of about one hundred and fifty to two hundred feet above the 
valley. 
3. Another locality is on the mountain southward of Cedar pond in Monroe. I cannot 
give its location definitely, as the country is perfectly wild. It is pot far from the line 
between.. Rockland and Orange counties. 
4. The locality of the white limestone to the southeast of Duck-cedar pond in Monroe, 
affords sphene crystallized, and scapolite, and these form with augite an aggregate. Some 
of the specimens are very rich in crystals of sphene. 
5. A great number of localities occur in Monroe, among which may be mentioned several 
near Greenwood furnace ; that near Slaughter pond ; Green pond; Island pond ; Munabasha 
or Mount Basha pond, where the immense sheets of mica are obtained O’Neil iron mine ; 
Forshee mine; Clove mine ; Rich iron mine; on the road from the Forest of Dean mine, 
about two miles west or west-southwest; and numerous other places were observed. 
In Cornwall, two or three have been mentioned. Augite and coccolite may be found in 
very numerous places about West-Point, principally on the hill tops or near them, and where 
a micaceous and pyritous gneiss and hornblende are near. Fort Putnam, and nearly all the 
crests where redoubts were formerly built, show coccolite and augite imbedded. Several 
places near the road from West-Point to Fort Montgomery show augite and coccolite, from 
three to six miles south or southwest of West-Point. Augite, coccolite, and scales of plumbago 
are found on Mr. Faurot’s farm, five miles from West-Point; this is not far from his house. 
Another locality is about half a mile north; another at an old mine hole one-quarter of a mile 
south, contains augite, coccolite, sphene, carbonate of lime, hornblende, magnetic oxide of 
iron, and pyrites. 
6. Greenstone. 
This rock is very common in Orange and Rockland counties, having the same appearance 
as that of Westchester and Putnam counties. The varieties are, 
1. Compact basaltic greenstone or trap. . 
2. Granular greenstone. 
3. Primitive greenstone. 
* An excavation was made at this place after some unknown substance, probably under the idea that the precious metals 
existed there, and several wagon loads of largo plates of mica were thrown out. I obtained some plates two feet on a 
side (crystals), as heavy as I could well carry, and loaded my carriage. 
68 * 
