The Petrography of tlie Fundamental Gneissose Complex. 41 



2. Secondary. 



Sericite, epidote, zoisite, garnet, magnetite, hematite, limonite, 

 chlorite, leucoxene, sphene, pyrite, serpentine and calcite. 



The mineralogical compositions of the gneisses may be represented 

 as follows : — 



Much of the alumina shown in the above as corundum is probably 

 present as kaolinite or as diaspore. 



