Rojo Alicante Red Marble Floor Tile is quarried from a bedrock quarry near Novelda, Spain. The white crystals and veins in this stone are concentrations of white and clear calcite. There will be noticeable variations in color and movement between pieces. Therefore, it is important and recommended that a range of this product be viewed before finalizing a purchase. It is a common characteristic for Rojo Alicante Red Marble stone to have voids in the raw material. Before it reaches the polishing stages, these voids are filled with a polyester resin. Depending on how deep the void is, the resin may shrink as it dries, which will leave the surface of the filled area slightly lower than the rest. This does not affect the durability, maintenance or beauty of the stone. It is also a softer stone, and may be susceptible to scratching or abrasion. Finally, a mesh backing is adhered to the stone. As a natural stone product it is recommended that it be sealed to extend its longevity.You're welcome to contact us for more infomation of decorative stone as you need.