304 



DESCRIPTIVE MINERALOGY. 



Fig. 242, the same, with the obtuse and acute lateral edges replaced by two planes. 

 Also Figs. 243, 244, 245 and 246. konk 155«> 4' ; a; on z 118° 28' ; P on o (Fig. 245), 

 about 152° 30' {Horton). 



Fig. 242. 



Fig. 243. 



Fig. 244. 



Fig. 245. 



Fig. 246. 



M 



M i 



M 



M 



There are. also various other more highly modified forms at the localities in this town, but 

 they are seldom sufficiently perfect for measurement. 



Putnam County. There are several localities of hornblende in this county, but well 

 defined crystals are seldom found. 



Hornblende, in the form of the primary with the acute lateral edges replaced by tangent 

 planes (Fig. 240), occurs in Phillipstown, of a grey colour ; and tremolite of a white and 

 bluish colour, at Hustis' farm in this town, and also at Coldspring. 



Hornblende, in long four and six-sided prisms without perfect terminations, occurs abun- 

 dantly in a decomposing serpentine at Brown's quarry, three miles northwest of the village of 

 Carmel. 



At the same locality, actynolite, of various shades of grey and green, having a good deal 

 of lustre, is found in veins in the serpentine. The fibres are bent, curved and interlaced, and 

 sometimes pass almost into asbestus. 



The same variety is found in the town of Kent, about two miles northeast of Carmel. 



At the Phillips iron mine, actynolite, green and black, is sometimes found coating the ore. 



Lamellar hornblende, having a high lustre, and exhibiting various shades of green, brown 

 and black, is found associated with magnetic iron ore in the town of Southeast, about three 

 miles southeast of the village of Carmel ; and the same mineral, of a dark green or black 

 colour, associated with epidote and other minerals, is found in the same tovm, a short distance 

 from the preceding. 



Tremolite of a white and bluish white colour, both bladed and fibrous, is abundant in the 

 dolomite in the vicinity of the village of Patterson. Knapp's quarry affords the best speci- 

 mens. They are quite similar to those found in the same rock in Dutchess, Westchester and 

 New- York. 



Asbestus, often reduced to silky fibres of a white colour, is frequently found in the same 

 rock in the vicinity of Patterson. It is sometimes associated with loose crystals of pyroxene 

 and calcareous spar, the whole having been originally imbedded in the dolomite, which has 



