Thanks for your interest in the flooring. Silestone 12"x12" tiles. You'll see nearly 12,000 square feet of this flooring material used thru-out the project as overall flooring and also borders for inset carpets, and fireplace surrounds, all in various custom patters that I developed using 4 colors of this product with stainless and brass divider strips in various widths, between all tile color changes. We used corresponding Silestone colors in larger format sheet sizes for shower room walls (to minimize tile joints). http://www.interdesignstudio.com/fully/fully.html

Wow! Something I never would have thought of. Stunning. I thought it might be Marmoleum. Thank you for answering!