Yes, yes, yes to the stone @flyingpig posted...Ask the Vendor about the fluorescence. Does it cause any hazyiness? Its rare but
does happen on occasion. The centre on this stone is showing really nice light return, and no mushy areas. The stone that you
posted above is better than the other stones you picked. It has a strong center but still has some mush under the table around the edges of the table.
size difference between stone OP posted and the stone flying pig posted