HANDBOOK OF THE METEORITE COLLECTIONS. 



155 



Constituents. 



Siliea(Si02) , 



Magnesia (MgO) 



Ferrous oxide (FeO) . . 



Iron(Fe) 



Nickel (NiO) 



Alkalies (K20+NajO) 



Sulphur(S) 



Tin oxide (SnOj) 



54.10 per 

 cent solu- 

 ble in HCl. 



31.32 



34.43 



27.95 



4.37 



.35 



.50 



1.64 



Traces. 



Constituents. 



Silica (SiOj) 



Alumina (AljOs) 



Ferrous oxide (FeO) 



Magnesia (MgO) 



Lime(CaO) 



Soda(Na20) 



Potash (K2O) 



Nickel oxide (NiO) . 

 Loss 



45.89 per 

 cent insolu- 

 ble in HCl. 



47.44 

 9.97 

 10.72 

 21.33 

 5.10 

 2.18 

 .97 

 1.21 

 1.08 



100.00 



Bulk analyses yielded: 



Per cent. 



Silica (SiOj) 33.16 



Alumina (AI2O3) 4.22 



Magnesia (MgO) 29.24 



Lime (CaO) 1.20 



Ferrous oxide (FeO) 18.59 



Nickel oxide (NiO) 3.81 



Tin oxide (SnOz) 1.10 



Iron (Fe) 4.32 



Soda (NajO) 1.40 



Sulphur (S) 1.60 



Potash (K2O) 0.60 



Chlorine (CI) and loss 0.76 



100. 00 

 The mineral nature, as calculated from the above, is given as; 



Per cent. 



Hyalosiderite 45. 65 



Olivine 23. 04 



Labradorite . 18. 13 



Pyrrhotite 2. 95 



Nickeli-ron 10. 25 



100.02 

 Gift of R. de Kroutschoff. 



Reference. — H. Abich, Bull. Acad. Imp. Sci. St. Petersb., vol. 2, 

 1860, p. 403. 



STEINBACH (BREITENBACH, RITTERSGRttN) SAXONY, GERMANY. Nos. 9, 90, 



140, 496. 



Stony-iron, Siderophyre. Four pieces, weight, 124.7 grams. 

 (1) Rittersgriin, found in 1847; section with crust,- weighing 38 

 grams, and irregular slice weighing 31 grams. The stony portion 

 exceeds the metallic, which consists of nickel-iron and one small 

 mass of troilite. (2) Fragment weighing 2 grams, from Steinbach. 



