IJHEt 



241 



Fig. 107. 



M 



M 



M 



Fig. 108. 



Fig. 109. 



Jefferson County. In the white limestone on the bank of Vrooman lake, 

 six-sided crystals of apatite occur, from half an inch to five inches in length. 

 They are of a fine green colour, and have their terminations sometimes 

 modified, as in the annexed Fig. 107. M on s 135° ; M on a; 129° 13' 53" ; 

 a; on a; 143° T 48". 



Lewis County. This mineral occurs in imperfect crystals, and in folia 

 of an emerald green colour, in the town of Diana, near Natural bridge. It 

 is associated with feldspar, scapolite, pyroxene and sphene ; the whole being 

 in white limestone. 



New-York County. At Corlaer's Hook, it has been found both amorphous 

 and crystallized. It is usually in apple-green prisms, sometimes imperfect, 

 either long and slender or short and thick, imbedded in granite. It has also been obtained 

 elsewhere on the island of New- York, from veins of quartz traversing mica slate, in pale 

 or deep green prisms from two to four inches in length.* I am not aware that this mineral 

 has been recently found at these localities. 



Orange County. In this county, so rich in its mineral resources, there are several loca- 

 lities of apatite. About three-fourths of a mile 

 from Edenville, the late Dr. Young, of that vil- 

 lage, found a locality at which he obtained well 

 defined six-sided crystals, from half an inch to 

 twelve inches in length, and from an eighth to 

 one inch and five-eighths in diameter.t They 

 are often of a bright asparagus-green colour, 

 and are engaged in white limestone. Fig. 108 

 and 109 represent the forms which have been 

 observed ; the former being the pyramidee of 

 Haiiy ; the latter having the edges of the prism 

 and pyramid replaced by tangent planes, M on 

 e 150°. I have found these crystals to contain 

 a minute portion of fluoric acid. 

 In the same vicinity. Dr. Horton has found pale blue crystals of a modified form, associated 

 with sphene in calcareous spar ; and others, of a greenish white, greyish white, or greyish 

 green colour, associated with mica and hornblende. 



About two miles south of the village of Amity, Mr. Nuttall, many years since, found a 

 locality from which were obtained very fine and perfect crystals of an emerald and bluish 

 green colour, and nearly transparent. Small and imperfect crystals are also found near Two 

 ponds in the town of Monroe, and occasionally specimens are met with at the Forshee iron 

 mine. 



• Pieice and Torrey. CUaveland') Mineralogy. 



MiN. — Part II. 



t American Journal of Science. XXIII. 403. 



31 



