142 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



This would correspond to : 



Per cent. 



Nickeliferous iron 98. 45 



Schreibersite 1. 55 



100.00 



According to Brezina, the iron belongs to the group of Hexahe- 

 drites, showing on etched surface a hexahedral structure and cleavage. 



RefereTices. — L. Fletcher, On the Mexican meteorites. Min. Mag. 

 and Journ., vol. 9, 1890, pp. 91-175; also bibliography given by 

 Wiilfing. 



SAN EMIGDIO, SAN BERNARDINO COUNTY, CALIFORNIA. Nos, 133, 237. 



Stone, Cc. Weight, 527 grams, in small fragments, the material 

 having been put through an ore crusher for assaying before its true 

 nature was known. Original mass said to have weighed 80 pounds 

 (36,280 grams). Found by a prospector in the San Emigdio Moun- 

 tains and nothing known regarding its fall and the main mass now 

 lost. All fragments badly oxidized. Chemical composition : 



Per cent. 



Metallic portion 6. 21 



Soluble in HCl 52. 19 



Insoluble in HCl 41. 60 



100.00 

 Specific gravity, 3.57. 



The metallic portion yielded 88.25 iron, 11.27 nickel, 0.48 cobalt. 

 Mineral composition : Olivine, enstatite, pyrrhotite, and iron. 

 Structure: Chondritic, tufaceous. 

 Gifts of Thomas Price and George P. Merrill. 

 Reference. — Geo. P. Merrill, On the San Emigdio metorite. Proc. 

 U. S. Nat. Mus., vol. 11, 1888, pp. 161-167. 



SAN LUIS POTOSI, MEXICO, No. 78. 



Iron. (See Descubridora.) 



SANTA CATHARINA, RIO SAN FRANCISCO DO SUL, BRAZIL. No. 104. 



Iron, Dn (or Df ) . Weight, 82.4 grams. Mass but slightly altered, 

 polished surface having a good metallic luster. 



Large masses of this iron, of which some 137,453 grams are ac- 

 counted for by Wiilfing, were found in 1873 scattered over a triangular 

 area of about 10,200 square meters. There is no positive evidence for 

 or against its meteoric nature. The probabilities, however, seem to 

 favor a meteoric origin, though anomalous from its high content in 

 nickel. 



The composition of the iron as given by E. Guignet and G. Ozorio 

 de Almeida is : Iron, 64 ; nickel, 36. Damour gave the following re- 

 sults: Iron, 63.90; nickel, 33.97; cobalt, 1.48; sulphur, 0.16; phos- 

 phorus, 0.05 ; carbon, 0.20; silicon, 0.01. Specific gravity, 7.75. The 



