ummm, do you have custom ore gen installed, or something. there are small ores all over but there 1 here and there, that drop either crushed or dust, not the ore it's self. and unless you have another mod adding regular style veins of ore they should still be in the large 3x3 chunk style veins with a mix of 3 or 4 ores per vein.
My only mods are fastcraft, Gregtech 6, CodeChickencore, NEI, and IC2, all 1.7.10 version. I can upload video showing the world gen.