ZIRCONIA. 



379 



faces liiglily finished, but they arc exceedingly lirittlc. The forms observed here, are tlic 

 pris?ne of Haiiy, Fig. 415, being the primary witli the edges of the base truncated ; the modi- 

 fication of the same, Fig. 416 : the plagiedrc of Haiiy, Fig. 417 ; the quadrisexdkcimal of 

 Haiiy, Fig. 418 ; together with those represented in Figs. 419, 420, 421, 422, 423 and 424. 



Fig. 415. 



Fi^'. 416. 



Fig. 417. 



Fig. 418. 



Fig. 419. 



; P on ;/ 152° 8' ; P on a; 150° 5' ; Z on / 90° ; I on u 159° ll ; I on x 



Or.\nge County. Zircon is of frc(juent occurrence in the towns of 

 Cornwall, Monroe and Warwick. In the Forest of Dean, in the town 

 of Monroe, it is found in very minute crystals in scapolite, associated 

 with pyroxene. Near the outlet of the Two ponds in the same town, 

 it also occurs in scapolite, and associated with crystallized pyroxene 

 and sphenc. These crystals are sometimes more than an inih in 

 length, and exhibit the forms represented in Figs. 415 and 417 as above, 

 and in the accompanying Fig. 425, hinol.riunilairr of JIaiiy. P on 5 

 117° 48'; P on t 152° 6'; P on x 150" 5'; / on ,v 135°; / on x 



142- 



On Deer hill in ihc town of Cornwall, a milt- southeast of 



the village of Canterbury, there is an abundant locality of zircon, 

 which is accociated with magnetic iron ore, or the white (piarlz which 



