On Metallic Minerals. 363 



Indeed, the marbles in Canada hitherto discovered, are 

 generally remarkable for their laminar structure. In 

 hand specimens, this marble is almost as fine as the Carrara, 

 but it can not be employed for sculpture, as it does not 

 appear that solid blocks of it can be procured. This marble 

 is ae^ain seen forming a mountain mass on the side of Crow 

 lake, nearest to the works. It is here penetrated by 

 hornstonc, which in consequence of its more durable 

 character, projects in ribs and concretions from its surface. 

 If would be desirable to open a quarry here in order to see 

 if the marble improved upon sinking into it, which is very 

 probable. It is here associated with (juartz rock, of which 

 the largest portion of the mountain appears to be composed. 

 This rock is stratified, and its strata are nearly vertical and 

 directed about north and south. 



What geological and mineralogical facts I have further 

 to cor.j'nuriicate will be stated in giving a description of 

 the different ores of which there are at least eight distinct 

 deposits. 



FIRST ORE BED, 



Commencing with those ores close to the works, on the 

 left bank of the river, they may be described as forming a 

 bed or vein in the sienite. One extremity of the marble 

 before mentioned falls oblijjuely upon the northern side of 

 this vein, whicli has itstlf a dip and direction about north- 

 cast. This vein appears to be nearly exhausted, or if not 

 it offers no suflicient inducement in the present day to 

 continue its exploration while such an abundance of good 

 ore can be so much more easily pnnMircd. 



The ores which have been found in this vein arc the 

 following, specular oxide of iron, red and yellow ochre, 

 •parry iron ore, and argillaceous oxide of iron. 



