434 



DESCRIPTIVE MINERALOGY. 



4 Fig. 524. 



Fig. 523. 



Fig. 521. 



Fig. 522. 



/dL o 



Fig. 525. 



The same mineral, in large but imperfect crystals, occurs near Kirby's graphite mine, four 

 miles northwest from Ticonderoga, where it is associated with pyroxene and scapolite. 



Lewis County. Near Natural bridge in the town of Diana, sphene 

 occurs in crystals of a dark chocolate-brown colour, with pyroxene, 

 scapolite and feldspar. The crystals are usually small, but often very 

 perfect, and have the form of the primary (Fig. 519) ; also that repre- 

 sented in Fig. 525, and several other modifieations, which are sup- 

 posed to belong to a distinct species (see Appendix to Sphene.) 



New-York County. Small brilliant crystals, in form similar to 

 Fig. 521, of a light dove colour, have been found imbedded in the 

 primitive limestone at Kingsbridge.* 



Orange County. There are several localities of sphene in this county. One of the most 

 interesting is near Duck-cedar pond in the town of Monroe, where it occurs in great abun- 

 dance, and in crystals of large size, in primitive limestone. 



 This mineral also occurs near the outlet of the Two ponds in the town 

 of Monroe, where it is associated with pyroxene, scapolite and zircon in 

 white limestone. The crystals have a dark chocolate-brown colour, and 

 are often of considerable size. 



The forms observed in this town are the primary (Fig. 519); Figs. 

 521, 522, 523, 524, 525 ; and Fig. 526, spinthere of Haiiy. P on a 159° 

 44'; P on c 140° 52 ; P on e^ 146° 30'; c on e^ 154° 52'; d, on d, 

 136° ; e, on e^ 113° 40' (Phillips). 



In the town of Warwick, sphene occurs in rounded grains and imper- 

 fect crystals, disseminated through limestone, with hornblende, etc., in 



Fig. 526. 



 American Mmeralogwal Journal, 241. 



