With the new ore system is time to add a new compatibility options like:

• Enderio: Sagmill
• Mekanism: crusher
• Actually addiction : crusher
• Extrautilities : Crusher

I think compatibility option is better than declare gravel,sand,dust a ore with Oredictionary

I completely agree. I will start work on this right away.

I like the Idea :D, but found a mistake/Dupe Bug :
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EDIT:
with actually adictions seems work