I'd guess that the one that is white is in the top left, the one with scatter is in the right, halfway between the middle and the side.

 

Of course, you probably wanted to try a layering effect so both of them are probably centered in the sphere with the diffuse marble one outside of the white only one and both of them are just a little smaller than the outer one.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)