42 



Field Columbian Museum — Geology, Vol. i, 



AEROSIDERITES OR IRON METEORITES. 



Cat. 



No. 



117 

 118 



119 

 120 

 121 



122 

 123 



124 



125 



877 



12G 

 127 

 128 



Date 

 of Fall or Find 



Found 1883. 



Found 1881. 



Found 1884, 



Found 1881. 



NAME AND DESCRIPTION. 



Found 1884. 



Found 1885. 



Found 1885. 



Described 

 1885. 



Described 

 1886. 



Grand Rapids, Michigan. 



Full-sized, thick section, polished and showing \V. 

 f. like previous specimen. (W.) 



Youndegin, Western Australia. 



Full-sized, elongated slab, showing pittings, crust, 

 polished and etched surface. The W. f. are very 

 coarse, many of the plates being 1.5-2 cm. in 

 thickness. They are also crossed by a series of 

 finer lines nearly at right angles. Troilite and 

 schreibersite are present. (W.) 



^Polished fragment with crust. (W ) 



Joe Wright Hountain, Independence Co., 



Arkansas. 

 Thin slab, etched, showing nodules of troilite and 

 typical W. f. The arrangement of plates about 

 one of the troilite nodules suggests a spherulite. 



(W.) 

 Etched slab, showing markings like previous speci- 

 men except that the troilite occurs in interlock- 

 ing veins. (K.) 



Glorieta Mountain, Santa Fe Co.,N e w Mexico. 



Thin lab with crust, polished and etched. The 



well known W.f. of this iron are fully displayed. 



(W.) 

 Square slab, etched, showing both coarse and fine 

 W. f. (K.) 



Hammond, St. Croix Co., Wisconsin. 



Thin slab, showing one etched and one polished 

 surface. The W. f. have a peculiar, shagree- 

 ned appearence, due to their grouping in smaller 

 and larger squares and to scattered flakes of 

 schreibersite. (W ) 



Like previous specimen except that the W. f. are 

 more distinct and the crust attains in some 

 places a thickness of 1 mm. (W. ) 



Puquios, Chile. 



Full-sized slab, etched. Irregular W. f. are dimly 

 brought out by the etching, also flakes of schrei- 

 bersite. ( W. ) 



Stutsman County, NorthDakota. 



Thin fragment, one surface etched. W. f. are but 

 dimly outlined. Many of the plates appear bent. 



(W.) 

 The Lea Iron, Tennessee. 



Large thin slab, showing crust, polished and etched 

 surfaces. Typical W. f, (W.) 



Thunda, Windorah, Queensland, Australia. 

 Sawed slab, one surface etched. W. f. distinct 

 and regular. (W.) 



Weight 

 in grams. 



7,881 



1,087 

 20.5 



98.5 

 33 



1,271 

 152 



35 

 20 



154 



234 



154 



