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Dear Cryptographers, I have repeated question , i did screening and with in one day i got crystals, also this is some gelled protein . under UV, the crystals appear blue but also the gelatin like precipitate too . i will attach the photo for some help if the birefrigence say some information if it is salt or protein. the screen condition is 0.2 ammonium sulphate and 15% peg 8000.also have feeling that crystals are still growing . best regards Amr ·