222 



DESCRIPTIVE MINERALOGY. 



cubic calcareous spar credited to this region. Six-sided prisms of calcareous spar are also 

 said to have been found at the foot of Goat island.* 



Oneida County. On the western bank of Dry Sugar river, near Boonville, there occur 

 crystals of calcareous spar, liaving the forms represented in Figs. 62 and 63. The rock in 

 which they are found is very hard, and divisible into layers of from two to twelve inches in 

 width ; it requires much labour and care to extract the specimens without injury. These crys- 

 tals are contained in veins which are filled with wet argillaceous earth. They arc sometimes 

 an inch in length. t 



Onondaga County. On the track of the Auburn and Syracuse railroad, near the village 

 of Camillus, the hog-tooth variety is found in considerable abimdance. It is usually of a yel- 

 lowish colour, and the crystals arc seldom more than lialf an inch in length. It is associated 

 with fibrous carbonate of lime, or what has been called arragonite. 



Orange County. There are several localities of calcareous spar in ihis county, but they 

 seldom allord well defined crystalline forms. A white variety, from which fine rhombohedrons 

 may be obtained by cleavage, is found at the O'Neil mine, in the town of Monroe. About a 

 mile southwest of Amity, it is white and nearly transparent ; and in the vicinity of the same 

 place, specimens arc found which are singularly variegated. At several localities it is of a 

 beautiful flesh-red colour, as at Amity, at Two ponds in Monroe, at the Qucensborough mine, 

 and in various parts of the town of Cornwall. This variety, which I have not met with out 

 of this county, usually has associated with it small crystals or grains of scapolite and cocco- 

 lite. It is richly worth a place in every cabinet. 



Veins of white calcareous spar occur in the slate at Newburgh, and to this may be added 

 two other localities, viz. the one, two miles east of the Greenwood furnace ; and the other, 

 four miles southeast of Woodbury furnace. 



Putnam County. At the Denny mine in Phillipstown, small crystals having the primary 



form are found on the magnetic iron ore. Masses 

 are also found, e.xhibting the rhombic cleavage, at 

 Hustis' farm in the same town, and at Coldspring. 

 But the most interesting locality in this county is 

 that which was made known to me by Mr. Cyrus 

 P. Fountain. It is near the village of Patterson, 

 where loose crystals are found adhering to the fibres 

 of asbestus which is common in the dolomitic lime- 

 stone. These crystals are while or yellowish, and 

 have both terminations perfect, although they are 

 usually small, seldom exceeding half an inch in 

 length. The most common forms arc the scalene 

 dodecahedron, modified as in Fig. 78 ; and a twin 

 crystal. Fig. 79. 



78. 



Fig. 79. 



* Cteavsland's Mineralogy, 



t Pjof. 0. P. Hubbard. American Journal of Science, XXXII. 230. 



