418 M. Sweden STIERN A ofi the Corundum ofGelUvara. 



Bournon In the Philos. Trans. 1803, is often accompanied by 

 another coarse grained, half crystallized, loose, and more magnetic 

 ore, by red felspar, red and white grayish phosphate of lime, and 

 silvery coloured mica. The corundum may sometimes be found in 

 the last mentioned iron ore, but never in the other substances, 

 though they often make a great part of the mass. Nor has it been 

 observed in any other variety of the Gellivara iron ores, except in a 

 light grey coloured, fine grained, compact and very hard one, where 

 I suspect it to be in the same close connection with the red oxide 

 of iron as in the common emery, to which it has a great resem- 

 blance. 



Geographical and Geological Remarks, 



The mines of Gellivara are situated in Swedish Lapland, at 

 67° 10' North latitude, about 160 English miles north-west of 

 Torneo. The mountains in which they are wrought is almost in 

 the center of a large country comprized between the shore of the 

 Baltic and the Norwegian Alps, 240 miles in length, and between 

 the two rivers of Torneo and Luleo, from 35 to 100 miles broad. 

 The height above the Baltic is not exactly determined, but may be 

 supposed about 1200 feet at its highest point. It rises gently on 

 the south side, but is more abrupt on the north and east. The 

 surrounding country is but a few hundred feet lower, and a moun- 

 tain called the Dundary, at a distance of five or six miles to the 

 east, is much higher. The whole mountain, which is about 2600 

 fathoms in length and from 1000 to 1600 in breadth, may be con- 

 sidered as a large deposit of iron ore, separated in standing layers 

 (Stehende Lager, Werner) of different thicknesses, by a red and 

 almost compact feldspar mixed with several other minerals. This 



