Whitfield and Merrill — Fayette County Meteorite. 115 



No. 1. 







5'6T per cent total. 



33 - 3 per cent of total. 

 Insol. in HC1. 



60-62 per cent total 



Total mass. 



Metal. 



Sol. in HC1. 



Si0 2 = 



37-70 







49-64 



33-59 



Fe 



3-47 



82-42 













FeO 



2382 







15-56 



31-12 



A1 2 3 



2-17 







4-12 



1-34 



P 2 5 



•25 









•42 



CaO 



2-20 







493 



100 



MuO 



•45 







•54 



43 



MgO 



25-94 







25-21 



28-08 



MO 



1-59 







trace. 



2-66 



Ni 



•65 



15-44 





u 





CoO 



•16 







u 



•27 



Co 



•09 . 



2-14 









s 



1-30 

 99-79 









2-18 





100-00 



100-00 



101-09 



Less 0, for S, 



- -65 

 99-14 









= 1-09 

 100-00 



Sp. gr. = 



• 3-510. 











The percentages in all except the first are calculated from 

 the weight found. 



From these figures it will be seen that the minerals which 

 go to make up the rocky portion of the meteorite are essen- 

 tially olivine and enstatite, with considerable pyrrhotite, as is 

 also shown by the microscopical description. 



The stone belongs to the class of meteorites to which G-. 

 Hose* has given the name "chondrites." To the unaided eye 

 the chondritic structure is not distinctly marked, a broken sur- 

 face showing a fine grained and evidently crystalline-granular 

 rock, very compact, of a greenish gray color and thickly studded 

 with small metallic points with a brassy luster. A polished 

 surface shows the stone to be composed of small chondri rarely 

 over 2 mm in diameter, thickly and firmly compacted *in a fine 

 granular groundmass. Throughout the entire mass are thickly 

 distributed innumerable small irregular flecks of a steel-gray, 

 brassy and bronze-yellow color, presumably native iron and 

 pyrrhotite. 



The striking feature of the stone is its fine and compact tex- 

 ture, which exceeds that of any chondritic meteorite with 

 which we are acquainted, but which is perhaps most closely 

 approached by the stones of Dhurmsala, India, and Cabarrus 

 county, N". C. 



Thin sections of the stone show, under the microscope, a 

 confused aggregate of rounded and irregular, often fragmental 

 olivine and enstatite grains and chondri, imbedded in a fine 

 granular groundmass of the same mineral composition. 



The chondri occur in both monosomatic and polysomatic 

 forms composed either of olivine or enstatite alone or the two 



* Abhandl. der Konigl. Akad. d. Wissensch. zu Berlin, 1863, p. 161. 



