// Vanilla
net.minecraft.block.BlockDirt

// Biomes O'Plenty
biomesoplenty.common.blocks.BlockNewDirt

// Enhanced Biomes
enhancedbiomes.blocks.BlockSoilEB

// TerraFirmaCraft
com.bioxx.tfc.Blocks.Terrain.BlockDirt

// Aether
net.aetherteam.aether.blocks.natural.BlockAetherDirt