252 Miscellaneous IjOGaUties of Minerals. 



edges replaced. This locality had been visited by others 

 previous to our going there. 1 am not, however, aware of 

 any notice of it having been published. 



9. Magnetic oxide of iron. 



Var. a. Crystallized in beautiful octohedrons in cavities of 

 the masses of the ore, at the ore beds about four miles west 

 of the furnace. 



b. In occasional masses of various sizes near the augite 

 crjstais ; structure crystalline ; on being fractured, the edges 

 of octohedra appear on tlie whole surface. 



IQ. Asbestus. In the same vicinity ; straw yellow ; fila- 

 ments sh<»rt, but often unusually beautiful. 



Newburgh, April 28, 1825. 



6. By Emerson Davis. 



Fibrous Limestone (satin spar) is found in West Springfield 

 at the falls of the Aggawam river, forming veins in red sand- 

 stone slate. The veins are perpendicular to the strata, from 

 \ to i an inch in width. The sand-stone is of a fine texture, 

 and probably calcareous. 



Roof Slate, at the same falls, is thrown upon the shore 

 apparently by the force of the water. There are only two 

 or three large blocks, but many small fragments. I am not 

 able as yet to find it in place, but I suppose it to form small 

 beds in the sand-stone. The green stone range crosses the 

 river one mile west of the falls, and still further to the west, 

 in Westfield, the red sand-stone again appears though of the 

 conglomerate kind. 



.Amethyst is found forming veins in the green stone« 



Calcareous Spar attached to green stone, sometimes in 

 veins and sometimes imbedded in amethyst. 



Prehnite in the green stone, filling small cavities or geodes. 

 It is in green radiating fibres. . It is in a decaying state, the 

 specimens are not very good. 



Serpentine, the foot of the mountain west of this village. 



Cyanite is abundant to the north and west of the village, of 

 the green and blue varieties — green in quartz, and blue in 

 mica slate. The crystals of the blue vsriety are not perfect. 



Jlctynolite is occasionally found ; fine specimens. * 



Westfield, April 27, 1825. 



* Any of the above, together with the Southampton minerals, I will 

 exchange for other minerals with those who may wish. 



EMERSON DAVIB. 



