LIME. 



245 



so celebrated among mineralogists. It is, however, by no means abundant. On Goat island, 



it is found with similar associates in straw-yellow, and rarely dark purple cubes, in the fetid 



limestone. The specimens do not possess much beauty. 



Onondaga County. Cubes of a deep and beautiful purple colour may be seen in the seams 



of white calcareous spar which traverse the hydraulic limestone in the quarry near Manlius. 



The fluor is also sometimes in imperfect crystals, and in grains. 



Orange County. At Edenville and Amity in the town of Warwick, fluor spar of a dark 



purple colour occurs in grains, and rarely in cubic crystals. It is sometimes associated with 



scapohte, and at others with talc or mica and brucite, in calcareous spar. 



Saratoga County. Small specimens nearly colourless, and penetrated by pp-itcs, are said 



to have been found in limestone near the Springs.* 



St. Lawrence County. There are several localities of fluor spar in this county. Near 



Rossie it occurs in crystals of a purple co- 

 lour, in calcareous spar, and sometimes 

 exhibits the form of the cubo-octaedre of 

 Haiiy. Fig. 117. P on i 125° 15' 52". 

 This mineral has also been found, accompa- 

 nying galena, at Mineral point in Morris- 

 town ; and large dodecahcdral crystals, Fig. 

 118, have been obtained in the town of De 

 Kalb, but with the precise locality I am un- 

 acquainted. They have the green tint of 

 the specimens from Muscolunge lake. 

 Warren County. Beautiful and highly modified crystals of fluor spar have been found 



by Dr. Emmons, in the vicinity of Johnsburgh. 



Fig. 117. 



Fig. 118. 



MURIATE OF LIME. 



Chloride of Calcium, of Chemists. 



Description. This salt is found in several of our mineral springs, and in small quantities 

 also in the water of some wells. It is very soluble in water ; and when evaporated by the 

 application of heat, it crystallizes on cooling in the form of long striated rhombic prisms. It 

 is very deliquescent. Its presence may be detected in waters, by the addition of solutions 

 of nitrate of silver and of oxalate of ammonia to separate portions. In each case there is 

 formed a white precipitate if muriate of lime is present. 



Composition. Calciimi 18.(31, chlorine 32.27, water 49.09. Formula CaCl + 6 Aq. 



CUavdand's Mineralogy. 



