592 On Stones said to have fallen at Ensishetm 



of iron diffused throughout the mass, as will be seen here- 

 after. 



As this stone has a great resemblance to that of Sales, 

 I shall for the sake of brevity give only a comparative de- 

 scription of them. 



In this stone, as well as in that of Sales, there are found 

 malleable iron, containing nickel disseminated throughout 

 it in grains ; lamellated and whitish sulphuret of iron in 

 the form of lumps and grains ; grav sulph.uret of iron l<;ss 

 sulphurated, in thin scaly strata, which line a multitude of 

 small fissures which traverse the stone in exxrv direction : 

 but it is observed that the white pyrites in it form larger 

 lumps, and that the gray p\ rites is more abundant than in 

 that of Sales. 



Small amygdaloid globules might perhaps be seen in it ; 

 but as they have a more metallic fracture than those of the 

 stone of Sales, as they are almost confounded in regard to 

 appearance with the mass, they do not deserve particular 

 attention. Its interior colour is darker and bluer than that 

 of Sales, and its fracture is somewhat changeable in its co- 

 lour, in consequence of the metallic splendour of small fis- 

 sures, which gives it a diflerent appearance by the magnify- 

 ing glass ; and on the transverse branches of these fissures 

 it IS observed, that this texture and the constituent elements 

 are the same in both, except in regard to the grain, which 

 is finer, and the tissue, which is more compact, than in that 

 of F^nsisheim. 



On carefully examining the dJlTercnces which I ob- 

 served between this stone and that of Sales, and which distin- 

 guish it also from the stones of Agen and of Benares, and 

 from others of the same kind about to be mentioned, it 

 will be seen that they do not relate to the constituent ele- 

 ments, but only to their proportions ; it is thereibre impos- 

 sible not to discover that this mineral mass is of the same 

 nature as that of Sales and others of the like kind. This 

 is confirmed by the following note, communicated to mc by 

 Vauquelin : 



" This stone has a perfect resemblance in the number, 

 nature, and quantity of its constituent principles, to all the 

 stones said to ha\c fallen from the clouds u hich have hitlicrto 

 been subjected to chemical analvsis. 



*' It is certainly composed of silex, magnesia, iron, nickel, 

 sulphur, and a small quantity of lime. . 



" I have ascertained, by particular trials, the presence of 

 sulphur and nickel in the grains of malleable iron, and in 

 the pyrites, but in diflerent pioportions. This stone there- 

 fore 



