IMHO, it sounds like you've missed the window on taking it away "easily". If letting her tough it out is not an option, then you might need to wait until she either gives it up on her own, or can understand the "pacifier fairy" or giving it to another baby.
You could try snipping the end of the pacifier to make it less appealing to her, but she might just scream at that, too.
At 6 months, my son was only using it at naptime and bedtime. It was starting to be counterproductive, though, because he would "lose" the nuk in the middle of the night and start screaming. We actually lost his last nuk, and I said there was no way I was replacing it. It was 2 nights of fussing and then it was over.