Thank you, Steph. That's very helpful. It's pretty difficult for me to tell the difference between the different marble makers. The Indian seemed easier for me to identify in a general way.
I've attached some other pictures of that Indian marble. Would it be classified as a 360 Swirl? Or do the black bands make it not a 360? Additionaly, could it be called a Lutz since goldstone seems to be in 2 of the black bands?