I would candle them all and make sure they all have veins. If any of them glows yellow and does not have any veins, it is probably infertile and will eventually rot and mold.
To avoid the mold spreading to good eggs and harming the rest of your clutch, it is good practice to separate those eggs now rather than try to do it later.
Even if I do not see any veins, I still do not immediately throw the "bad" eggs out, I just leave them in the same container (separated) and monitor their progress (just to error on the safe side). If they are for sure bad, they will start to mold in about 14 days.
That being said, the only time you need to separate your eggs is if you are trying to pull off one or more bad eggs. Otherwise you are good to go. Stick them in the container as the female laid them.
Good luck!
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Reid Begnoche
http://www.tallgrassreptiles.com
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