HANDBOOK OF THE METEORITE COLLECTIONS. 103 



MARION (9 MILES FROM), LINN COUNTY, IOWA. No, 461, 



Stone, Cwa. Fragment about 70 by 75 mm., with crust, weighing 

 45 grams. Fell February 25, 1847. (See Hartford, Linn County, 

 Iowa.) 



MARJALAHTI, FINLAND. No. 319. 



Stony-iron, Pallasite. Fragment weighing 346 grams, from a mass 

 weighing 44.8 kilograms, which fell on June 1, 1902. It has been 

 the object of detailed investigation by L. H. Borgstrom, who reports 

 it to consist of some 80 per cent by weight of nickel-iron and 20 per 

 cent olivine. The iron yielded: 



Per cent. 



Iron (Fe) 92.28 



Nickel (Ni) 7.13 



Cobalt (Co) 1 .42 



Clironiiiim and phosphorus (Gr and P) None 



99.83 

 The olivine yielded: 



Per cent. 



Silica (SiOj) 40.26 



Ferrous oxide (FeO) 11.86 



Magnesia (MgO) 47.26 



Chromic oxide (Cr203) .12 



Pota.sh (K2O) . .05 



Soda (Na-O) ^ .04 



99.59 



Analyses were also given of the fused crust and the kamacite- 

 taenite-plessite compound. 



Reference. — L. H. Borgstrom, Die Meteoriten von Hvittis und 

 Marjalahti. Bull. Comm. geol. Finlande, No. 14, 1903, p. 45. 



MART, Mclennan county, texas. no. 221. 



Iron, Of. Weight, 456 grams. Slice etched, showing typical Wid- 

 manstiitten figures : small nodules and veins of troilite and schreiber- 

 site. Weight of original mass, 7,149 grams. Date of fall unknown. 

 Found in 1898. Chemical composition, as determined by H. N. 

 Stokes : 



Per cent. 



Iron (Fe) 89.68 



Nickel (Ni) , 9.20 



Cobalt (Co) .33 



Copper (Cu) .037 



Phosphorus (P) .158 



Sulphur (S) .017 



Chromite (FeOCi-.Oa) Trace 



Ferric oxide (FeaOa) ^ Trace 



99. 422 



