STEWART COUNTY (GA.) METEORITE. 



(Fell on October 6, 1869.) 



In October, 1869, I learned through the public press that 

 certain meteoric phenomena had occurred in Stewart County a 

 Georgia, and that one or more stones had fallen. Inquiries 

 were immediately instituted by me, and through Prof. Willet 

 I obtained for examination the only stone found, one that was 

 seen to strike the ground. 



The stone, as it reached me, was nearly intact, and weighed 

 twelve and a quarter ounces; it must originally have weighed 

 twelve and a half ounces. It is of an irregular conical shape, 

 having a flattened base, and is covered with a dull, heavy 

 black coating. The specific gravity is 3.65. The fractured 

 surface has a grayish aspect, and when examined closely, 

 especially by the aid of a glass, exhibits numerous greenish 

 globules with a whitish granular material between; through 

 the mass are dark particles consisting principally of nickelif- 

 erous iron, with some pyrites and a few specks of chrome iron. 

 The nodules are sometimes three or more millimetres in diam- 

 eter, and of an obscure fibrous crystalline structure, the crystals 

 radiating usually from one side of the nodule; they, have a 

 dirty bottle-green color, a greasy aspect when broken, and are 

 more or less opaque. 



Some of these little nodules were separated in a tolerable 

 state of purity, amounting to one hundred and twenty-one 

 milligrammes. On analysis they afforded: 



Oxygen. Eatio. 



Silica 48.62 25.90\ 



Alumina 8.05 3.79/ Z 



Protoxide of iron 11.21 2.51 \ 1 



Magnesia 30.18 11.80/ 



98.06 

 The hardness of the mineral is about 6, and it is quite tough. 

 The formula would be ft si, with a part of the silica replaced by 



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