Statuario

That's part of why it's everywhere.

Calacatta and Statuario run multiples of Carrara.

And Taj Mahal Quartzite? The better grades.

Often costs more than Carrara per square foot.

Michelangelo got his marble from there.

The volume is enormous.

Calicata and Statuario come from the same region, but from much smaller, more selective quarries.

So the price difference isn't about quality in the sense of durability.