Testing some particles, i tried to make those work, and they dont work.
How to reproduce:
-Do /particle blockdust_ ~ ~ ~ 1 1 1 1
-Test with blockcrack_ and iconcrack_ replacing the blockdust_ in the command
-Watch how you get "Usage: Unknown effect name (iconcrack_)"
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For iconcrack_ and blockdust_, you need to put the id of a block after the underscore. I have used both of those particles and am sure that they both exist. I have never tried blockcrack_ but I'm sure the same rule applies to it when you use it if it does in fact exist.
Here is the complete list of the particles http://minecraft-de.gamepedia.com/Partikel (In German, English Wiki is incomplete)
For iconcrack_ and blockcrack_, you need to add an ID and data.
As for blockdust_, there is no particle that goes by that name.