Descripi'tnn and Anahjsis of a Meteoric Slone. 26S 



of those, strange, and unaccountable visitors, and tend to 

 prove the resemblance to each other of ihc stones that have 

 fallen in diriercnt parts of the world. 



This stone was sent last spring to the Dublin Society, 

 with an account of the circumstances attending it§ fall, iti 

 a letter from Mr. Moore, a printed copy of which I inclose. 

 It was not injured by the fall, and was somewhat of a cu- 

 bical siiape, with the angles and edges of two sides rounded: 

 the other two opposite sides exhibited a very uneven sur- 

 face, occasioned by depressions and prominences, as if a 

 part had been broken previous to the heat to which it must 

 have been exposed before its fall. 



It weighed seven pounds and three quarters, and the en- 

 tire surface was covered over with a brownish black thin 

 crust, evidently the effects of fusion by an intense and rapid 

 heat. When broken, its internal appearance is of an ash- 

 gray colour, and of a griity coarse fracture in some degree 

 resembling sand-stone, except some particular parts where 

 a specular appearance occurs somewhat like blackish-gray 

 gneiss: in this case the smooth surfaces do not adhere so 

 firudy as the other parts ; the dark colour proceeds from 

 malleab'e iron, which forms here and there a very thin coat- 

 ing. When its texture is closely examined, the following 

 substances are very distinguishable : 



1st. Dark-gray panicles of malleable iron without any 

 regular shape, which when rubbed with a file exhibit the 

 brightness of that metal ; they are very numerously di- 

 spersed, and of une(|ual magnitude. Some very small 

 bright particles of iron also occur. 



Sdly. Particles of martial pv riles of various colours, some 

 reddish veliow, aome. yellowish white, and some very few 

 of a purple colour not unlike co|)p(T ore ; llie latter is ia 

 small grains, and also the reddish yellow, although much of 

 it is nunutely disseminated. 



3dly. Very few round globu'es about the size of mustard 

 seed, of a grayish- brown colour, which readdy give way to 

 the file, and seem to contain no metallic matter. These 

 different substances are held cemented together by a whitish- 

 gray earthy matter. Very small yellowish-brown spots, 

 very close to each other, run throughout the whole mass of 

 the stone, which proceed from oxide of iron. 



The specific gravity of the stone is 3*67. 



TIte Analysis. 



I reduced one hundred grains of the stone to powder, then 

 R 4 separated 



