g2 

59 
60 
61 
62 
63 
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65 
ate 
. | of Fall or Find. 
FIELD CoLUMBIAN MusEuM—GEOLOGY, VOL, II. 
D NAME AND DESCRIPTION. 
Known 1837. | Coahuila, Mexico. 
Iron. Hexahedrite, H. (Sancha Estate.) Thin, 
polished slab, a portion etched. Cat. No., 37. 
Turnings. Cat. No., 90. 
Found 1868. Butcher Iron. Large, thin slab, a portion etched. 
The latter shows a stippled surface intersected 
by numerous Neumann lines. Included nod- 
ules of troilite are also to be seen. Cat. No., 
42. 
Large segment, showing natural, polished and 
etched surfaces. Natural surface very smooth. 
Etched surface like that of previous specimen. 
Cat. No., 43. 
Fell 1838, Cold Bokkeveld, Cape of Good Hope, Africa. 
Octels. Stone. Carbonaceous chondrite, K. Fragment 
Su ACeNI from interior. Dull-black with white specks. 
Resembles a piece of graphite. Cat. No., 246. 
Found 1880. | Colfax, Colfax Township, near Ellenboro, Ruther- 
ford_Co,N oftheG aro ld nee 
Iron. Medium octahedrite, Om. Spheroidal mass, 
' showing natural and etched surfaces and frac- 
ture. The latter shows the iron to be highly 
crystalline, and to possess octahedral cleavage. 
Cat. No., 153. 
Etched section, showing typical octahedral fig- 
ures. See Plate XXXV. Cat. No., 156. 
Fell 1890, Collescipoli, Terni, Italy. 
Feb. 3, Stone. Spherical chondrite, Cc. Fragment, with 
1:30 P. M. crust. Crust dull black, scoriaceous, nearly 
2 mm. in thickness. Interior of stone light 
bluish-gray. _ Shows chondri and metallic 
grains. Cat. No., 356. 
Known 1860. :| Coopertown, Robertson Co., Tennessee. 
Iron. Medium octahedrite,Om. Thin slab, etched. 
The Widmanstatten figures are made up of 
broad plates, 5 mm. in thickness. Cat No., 83 
Described Cosby’s Creek, Cocke Co., Tennessee. 
1840. _ Iron. Coarse octahedrite,Og. Several irregular 
fragments, all showing octahedral cleavage. 
Cat. No., 48: 
Irregular fragment, cleavage structure promi- 
nent. Cat. No., 49 
Five fragments of about 20 grams each, cleaving 
in octahedrons, which are separated by bright 
plates of taenite. Cat. No., 53. 
Found 1881. | Costilla Peak, Taos Co., New Mexico. 
Iron. Medium octahedrite, Om. Nearly full- 
sized etched section, 11x20 cm. Shows typical 
octahedral figures. Cat. No., 502. 

Weight 
in grams. 
