Rock Type: Chloritized biotitite
Description: Altered sphene after Ti-magnetite on biotite margins. Note the exsolved ilmenite lamellae (pink grains) still preserved within the altered sphene. Biotite grains (orange-yellow) have been chloritized (green) along grain margins and cleavage planes. They commonly contain fine-grained ilmenite grains (black) and ilmenite development along cleavage planes. The rock was studied for its titanium-vanadium potential.