Do you find ores hard to find? Or you just don't pay enough attention in caves and you always pass by those shiny diamonds? The sollution is pretty simple. You can download this resource pack and the ores will have edge painted in the color of ore. But if you don't mind installing OptiFine, spotting the ores will be even simplier ... I have made the ore textures glow in the dark :-). It's done via OF's "emissive textures". Enjoy caving!

And mod support? It supports Biomes O Plenty, if you want more, please add a comment, I will try to add it.