56 Miscellaneous Localities of Minerals. 



Coaly Gypsum and Barytes, by Horatio N. Fenn, M. D. 

 Geneseo, N. Y. 



Small specimens of Coal, collected about eight miles 

 from Geneseo. The vein from which they were taken is 

 about six inches in width and half an inch thick. It is situated 

 in the face of a cliff fifty feet in height — composed of a 

 dark coloured, calcareous slate, which by friction emits a 

 fcEtid odour. This cliff forms the boundary of a narrow 

 valley or Glen, through which flows a brook, bearing the 

 Indian name of Quisequagh. A considerable residuum is 

 left behind, after burning J "buti think it the hest bituminous 

 coal I have seen in this part of the State." 



Foliated gypsum o( a rose colour. Several specimens were 

 found below the falls at Rochester, one of which is very 

 beautiful. It is composed of a bivalve shell, resembling 

 that of the common round clam, the inside of which is com- 

 pletely filled with sulphate of Lime of a beautiful rose red. 



Nodular Sulphate of Barytes, from the bed of the Gene- 

 see river, a few miles below Rochester. The Nodules are 

 embedded in red sandstone, and externally have the gene- 

 ral appearance of agates. 



Sulphur in Granite. 



Extract of a letter from Mr. Robert Mair, dated 



Stamford, (Con.) Aug. 25, 1823. 



" A few days since, a stone of a curious nature, nearly 

 the size of a bushel, was broken to pieces, 1 procured a 

 few specimens, which I send you. The minuter fragments 

 were taken from the center of the stone ; the larger shew 

 the outward appearance. 



The people in the vicinity imagine it fell from a thunder 

 «loud. The hill on which it was found they have already 

 named Brimstone Hill.'''' 



Note. The specimens above alluded to are granite, in- 

 ■?jlosing sulphur. As far as can be judged from them, the 

 Stone was originally a small bowlder of granite, inclosing a 

 collection {geode) of crystals of iron pyrites. The granite 



