What Kind Of Coral Is This?

[prism127]

I have 3 of these they have hard base

 

[EricTMah]

Looks like a Duncan
http://www.liveaquaria.com/product/prod_display.cfm?c=597+2790+2670&pcatid=2670

Could be a washed out dendro too
http://www.corallore.com/dendrophyllia-general-care/

Sony Xperia Z3

 

[TORX]

Top pick is definitely a Duncan coral. The other one probably is too, I have seen white ones that are listed as healthy, but not very often.