Disguised ore

Disguised ore Is a type of ore that spawns in the deep dark, a pitch black ore that has no way of telling which ore it actually is. When mined it would give any random ore drop such as diamond, emerald, redstone etc. It would spawn in veins and each ore in the vein would be the same but would be disguised.

I think this would be cool as the player wouldn't be able to tell what ore their getting from the deep dark as it is well, dark, so they shouldn't be able to tell.