48 



BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



Constituents. 



Silica (SiOs) 



Iron (Fe) 



Ferrous oxide (FeO ) 



Alumina ( AljOa) 



Phosphoric acid (PjOs) 



Lime (CaO) 



Manganous oxide (MnO) 



Magnesia ( MgO ) 



Nickel oxide (N iO) 



Nickel (Ni) ; 



Cobalt oxide (CoO) 



Cobalt (Co) 



Sulphur (S) 



Less O lor S 



Specific gravity 3.510 



No. 1: 

 Total mass. 



37.70 



3.47 



23.82 



2.17 



.25 



2.20 



.45 



25.94 



1.59 



.65 



.16 



.09 



1.30 



99.79 

 .65 



99.14 



No. 2: 5.67 



per cent 



total metal 



82.42 



15.44 

 2.14 



100.00 



No. 3: 33.3 

 per cent 

 total in- 

 soluble in 

 HCl. 



15.56 

 4.12 



4.93 



.54 



25.21 



Trace. 



Trace. 



Trace. 



No. 4:60.62 

 per cent 



total 

 soluble in 



11 CI. 



33.59 



31.12 

 1.34 



.42 

 1.00 



.43 



28.08 



2.66 



.27 

 2.18 



101.09 

 1.09 



Mineral composition. — Mainly olivine and enstatite with 5.67 per 

 cent metallic iron. Structure chondritic; compact; is traversed by 

 narrow, irregular dark veins (see pi. 7, fig. 2), the origin of which is 

 problematic. In mineral composition they do not differ essentially 

 from the main mass of the stone. Color, dark greenish-gray on a 

 fresh surface. 



Reference.—^. E. Whitfield and G. P. Merrill, The Fayette County 

 meteorite. Amer. Journ. Sci., vol. SGj 1888, pp. 113-119. 



BOHUMILITZ, PRACHIN, BOHEMIA, AUSTRIA. No, 446. 



Iron, Og. A slice 55 by 20 by 4 mm., weighing 103 grains, from a 

 mass weighing some 57 kilograms, found in 1829. Several analyses 

 have been made, but none can be considered satisfactory. Steinman 

 gives iron, 91.06; nickel, 4.01; residue, 1.12; and sulphur, 0.81. 



Reference. — Cohen and Weinscheiik, Ann. k. k. Naturhist. Hofmus., 

 vol. 6, 1891, p. 143. 



BORKUT, MARMAEOS, HUNGARY. No. 189. 



Stone, Cc. Fragment from the interior, weighing 2 grams. 



BRAHIN, MINSK, RUSSIA. No. 124. 



Stony-iron, Pallasite. Fragment of the iron matrix from which 

 all the stony matter has disappeared, weighing 14 grams ; from a mass 

 weighing some 100 kilograms, known as early as 1810. 



BRAUNAU, BOHEMIA, AUSTRIA, Nos. 49, 491. 



Iron, H. A fragment weighing 7.35 grams and a thin slice 25 by 

 30 by 2 mm., weighing 16 grams, from one of two masses weighing 



