354 Elements of Mineralogy^ 



CHAP. XVI. 



Siderite. 



1. The firft diftindt mention I find made 

 of this fubftance is in the Mineralogy of Mr. 

 Monnet, p. 384, printed in 1779 * but the 

 merit of difcovering its nature is undoubt- 

 edly due to Mr. Meyer of Stetin, who, no$ 

 contenting himfelf with vague generalities, 

 developed its principal properties by a feries 

 of ingenious and well connected experir 

 ments publifhed among the Memoirs of the 

 philofophical fociety of Berlin for the year 

 1781 and 1782 ; fome few of which he alfa 

 mentioned in the Memoirs of the preceding 

 year. Mr. Bergman, ignorant of what Mr. 

 Meyer had done, arrived at the fame conclu- 

 fions nearly at the fame time, as may be 

 feen in the 3d volume of his works, and 

 difcovered fome additional properties of thi$ 

 new femi-metallic fubftance. From thefe 

 fources I have extracted the following ac- 

 count of it. 



2. Siderite is principally found in iron o r 

 the firft fufion or caft iron, and in the ores of 

 oldfhort iron. The manner of its extraction 

 has been already mentioned, Chap. 5. N? 

 46. A pound of caft iron fometimes affords; 



