Engineered stone slab

A method of producing a pair of modified engineered hardened stone slabs comprising:

• producing a first engineered hardened stone slab bound together by a resin;
• modifying the first engineered hardened stone slab by printing on the first engineered hardened stone slab to form a first modified engineered hardened stone slab;
• producing a second engineered hardened stone slab bound together by the resin;
• modifying the second engineered hardened stone slab by printing on the second engineered hardened stone slab to form a second modified engineered hardened stone slab;
• wherein the first modified engineered hardened stone slab is comprised of:
• the first engineered hardened stone slab bound together by the resin, the first engineered hardened stone slab having a first three-dimensional characteristic located in part on a two-dimensional top surface of the first engineered hardened stone slab;
• and
• wherein the first three-dimensional characteristic is located in part at an x distance along a width of the first hardened hardened stone slab and a y distance along a length of the first engineered hardened stone slab;
• a first masking image having a characteristic printed in part on top of the first three-dimensional characteristic;
• wherein the characteristic in the first masking image is located in part at the x distance along the width of the first engineered hardened stone slab and the y distance along the length of the first engineered hardened stone slab;
• wherein the second modified engineered hardened stone slab is comprised of:
• the second engineered hardened stone slab bound together by the resin, the second engineered hardened stone slab having a second three-dimensional characteristic located in part on a two-dimensional top surface of the second engineered hardened stone slab;
• and
• wherein the second three-dimensional characteristic is located at an x′ distance along a width of the second engineered hardened stone slab and a y′ distance along a length of the second engineered hardened stone slab;
• a second masking image having a characteristic printed in part on top of the second three-dimensional characteristic;
• wherein the characteristic in the second masking image is located in part at the x′ distance along the width of the second engineered hardened stone slab and the y′ distance along the length of the second engineered hardened stone slab;
• wherein the width and the length of the first engineered hardened stone slab are substantially the same as the width and the length of the second engineered hardened stone slab, respectively;
• wherein the x distance and the x′ distance are different only due to random manufacturing inconsistencies in manufacturing of the first engineered hardened stone slab and the second engineered hardened stone slab;
• wherein the y distance and the y′ distance are different only due to random manufacturing inconsistencies in manufacturing of the first engineered hardened stone slab and the second hardened engineered stone slab;
• and
• wherein the second engineered hardened stone slab, which does not include the second masking image, and the first engineered hardened stone slab, which does not include the first masking image are different only due to random manufacturing inconsistencies in manufacturing of the first engineered hardened stone slab and the second engineered hardened stone slab.