ANALYSES OF METEORIC STONES, 



57 



nia, which they tinged blue. This blue solution being eva- 

 porated, a little oxide was left, which could not be weighed ; 

 but it was treated with muriatic acid, and a slip of iiou 

 immersed in the solution, which did not become coated, 

 with copper. It is evident therefore, that this small quan- 

 tity of njatter was nickel. The liquor containing saturated Nickel. 

 carbonate of potash had retained a little inanganese, but Manganese. 

 not the shghtest trace of magnesia. No magnesia. 



T boiled the brown precipitate foriDcd by ammonia in a AUimine. 

 solution of pure potash, which took up some aluniiae. 

 This was separated, and treated with sulphuric acid. The 

 alumine still retained a small quantity of silex and lime. 



After having let the oxide of iron dry, I treated it with Silex, 

 muriatic acid, and evaporated to dryness; when a small 

 portion of silex again separated from it. All the silex was 

 mixed together, and heated red hot. The muriatic solu- 

 tion of iron was decomposed by saturated carbonate of pot- 

 ash, filtered, and evaporated; when it still yielded a little More manga- 

 oxide of manganese, without any magnesia being discover- ma^,V"^ '*** 

 able. " " * 



As I suspected, that the oxide of iron might still retain iron and a lit- 

 a little lime, or magnesia, [ redissolved it in muriatic acid, I'e luiie. 

 and precipitated by oxalate of ammonia; but 1 obtained 

 only a light yellow precipitate, which was oxalate of iron 

 mixed with a little oxalate of iime. This I heated red hot, 

 and then redissolved in muriatic acid. This solution I de- 

 composed by ammonia, to get the oxide of iron; aiul pre- 

 cipitated the lime by oxalic a< id. To precipitate all the 

 iron from the solution to which oxalate of ammonia hud 

 been added, I employed the hidrosulphuret of ammonia, 

 ■which formed a black precipitate. This was well washed, 

 dried, calcined, then redissolved in muriatic acid, and pre- 

 cipitated afresh by ammonia. The solution decomposed by 

 hidrosulphuret of ammonia contained no lime. 



It follows from all the facts exhibited in this analysis, Comnonput 

 that the aerolite of Stannern contains silex, alumine, lime, pans, ciciord- 

 iron, manganese, nickel, and sulphur; but I found neither qlftjim. 

 magnesia nor chrome. 



The 



