I'm so sorry..... to hear that. I've got a rule concerning the coral I keep and my ability to pronounce their name. You sure it's not a "Diva"? Cause I could have one of them.
You would not be able to be sure what Acropora is is because there is not enough Acropora there to give it a certain ID. We know it is purple with green polyps and it has tubular radial corallites. That could be many different species.