Grout situation

[tilesnake]

I laid 300ft in my own kitchen/foyer and went with a porcelin 12by12 that looks like a tumbled marble my "problem?" is that when I grouted the little crevices filled with grout and I cant get it out. Is this a normal "rustic" thing or do i have a problem? I just grouted this within the last two hours, Its 10:30 Chicago time 7/14 can I deal with this now or do I wait until the grout is truly dry? I already scrubbed the tile with a scotch pad and it did not remove much. If this is normal can I just seal both the tile and the grout since I noticed the tile absorbs water more then most I've dealt with in the past?
Thanks ahead of time. Tilesnake.

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[Davestone]

You'll probably have a latex/efflorescent haze and need to clean anyway, so i'd let it set up, then use a cleaner, and black buffer pad,myself.