! 
348 Mineralogy of Jefferson and St. Lawrence Counties, N.Y. 
abundantly in the town of Rossie, St. Lawrence Co. two or three 
miles from Oxbow, on the road to Rossie furnace. It is found by 
the road side, in granular lime rock, which, with the gneiss, crops out 
very conspicuously for some distance. It is crystallized in prisms 
from one to three inches in length, and from half an inch to one and 
half inches in diameter. 
~ The town of Gouverneur, in St. Lawrence Co., furnishes many 
minerals of still greater interest. The rock here is Granite, associ- 
ated with Granular lime rock. The lime rock, in many places, is 
sufficiently compact to be sawed into slabs, and take a good polish, and 
some quarries are worked with advantage, and afford a handsome mar- 
ble; but generally it disintegrates rapidly whenever it is exposed to the. 
air, breaking into rhomboidal fragments. One mile south from the 
village of Gouverneur, on the road to Watertown, the Granite and 
Lime rock crop out abundantly on both sides of the road. 
The granite here consists almost entirely of Feldspar. It contains 
very little quartz, and not a particle of mica. On the west side of 
the road there is a deep fissure in the granite, five feet wide and thirty 
feet in length. On removing the soil and loose stones from this cavi- 
ty, we found both sides completely studded with crystals of feld- 
spar and green augite. The crystals of feldspar are flat prisms or 
tables variously modified, and of different sizes. Many of the crys- 
tals are weathered, and have lost their lustre, but the most perfect 
specimens are those which have been protected by a covering of cal- 
eareous spar. ‘These have fine polished faces, frequently six or seven 
inches in width, of a greenish color, with considerable lustre. Good 
specimens can be obtained only by considerable expense of time and 
labor, it being necessary to blast the rock to the depth of six or eight 
feet. The Augite is found with the feldspar in crystals one to four 
inches in length, but destitute of lustre. 
Directly opposite, and about twenty rods from the road, the gra- 
nite and crystalline lime rock are elevated in irregular ridges. | 
At one locality, where the marks of considerable labor appear, we 
discovered scapolite, and phosphate of lime. A cavity eight feet 
deep and ten feet in length, has been made by blasting the rock just 
at the junction of the granite with the lime stone. The scapolite is 
found in groups of short crystals, disseminated through the limestone 
in great abundance. They are white, and generally translucent, with 
highly polished faces. ‘The most common form is a four sided prism, 
with the edges replaced, and terminated by four sided pyramids at 
oue or both extremities. The crystals vary from one eighth of an 
