PHYSIOGRAPHY. 35 



Apatite. Aphanesite. 



color in white limestone, associated with brown Augite and Scapolite. 

 At Bolton, (Mass.) it occurs crystallized and massive, of a bluish green 

 color, under similar circumstances, with the addition of Petalite and 

 Sphene. Handsome green crystals have been found at Monroe, (Con.) 

 in granite : but they are scarce. Very distinct crystals an inch or 

 more in length, of a reddish brown color, are occasionally met with in 

 a vein of granite at Greenfield, (N.Y.) acccompanied by Chrysoberyl, 

 Tourmaline and Garnet. The following localities of Apatite in small 

 green or yellowish green crystals, imbedded in granite, are quoted in 

 Cleaveland's Mineralogy, viz., near Baltimore, (Maryland,) near Wil- 

 mington, (Delaware,) near Philadelphia, New York and New Haven ; 

 also the following in Iron Pyrites : near Green Pond, Morris co. (N.Y.) 

 and at Anthony's Nose in the Highlands of New York. 



APHANESITE. Aphanistic Copper-Bary te. 



Primary form. Oblique rhombic prism. M on M'= 

 56. PonM=99 30'. 



Secondary forms. 



Fig. 37. Fig. 38. 



P on al 125 00' 



P on cl 80 30 



P on c2 99 30 



/ on / 62 30 



Lustre pearly upon the face of perfect cleavage. Color 



dark verdigris-green, inclining to sky-blue, still darker on* 



the surface. Streak verdigris green. Translucent on the 



edges. 



Not very brittle. Hardness = 2-5 ... 3-0. Sp. gr. = 



4-192. 



1. Before the blow-pipe it deflagrates and emits arsenical vapors. 



2. Analysis. 

 By CHENEVIX. 



Oxide of copper . . . 54-00 



Arsenic acid . . . 30-00 



Water . . 16-00 



n 



