264 The Rev. S. Haughton's Notes on Mineralogy. 



of carbonate of soda, so as to redissolve the silica soluble in mu- 

 riatic acid. There was left t 42-44 grs. of insoluble mineral, 

 while the soluble portion gave — 



grs. 



Silica 12-36 



Peroxide of iron* . . . 38-60 

 Oxide of nickel .... 1*44 

 Carbonate of lime .... 0'40 

 Pyrophosphate of magnesia. 32*62 

 Potash and soda chlorides . 0*40 



Assuming the iron (metallic) as 19- 5 7 per cent., and the proto- 

 sulphuret of iron as 4*05 per cent., we find — 



Per cent. 

 Equivalent of 19-57 Fc . . 27-94 Ee 2 O 3 

 Equivalent of 4'05 FcS . 3-68 „ 



31-62 



Subtracting this result from the total peroxide of iron, and con- 

 verting the oxide of nickel into nickel, we obtain — 



1. Primary Analysis of Meteorite (B) 



1. 



2. 

 3. 



4. 

 5. 



Metallic iron . . 

 Metallic nickel . 

 Magnetic pyrites . 

 Mineral (soluble) . 

 Mineral (insoluble) 



Per cent. 



19-57 



113 



, 4-05 



32-81 



42-44 



100-00 



2. Soluble Mineral (B). 



grs. Per cent. Oxygen. 



1. Silica . . . . 



12-36 



38-86 



20-175 



2. Protoxide of iron 



6-28 



19-74 



4-379^1 

 0-204 1 



3. Lime ...» 



0-23 



0-72 



4. Magnesia . . . 



11-72 



36-85 



14-727 W9465 



5. Potash. . . . 



0-07 



0-22 



0036 1 



6. Soda .... 



0-15 



0-47 



0-119J 



7. Loss .... 



1-00 



3-14 





* 

 ron. 



31-81 100-00 

 This result completely verifies that already found, and proves 



Present originally as iron, protoxide of iron, and protosulphuret of 



