Synthetic molded slabs, and systems and methods related thereto

A processed slab comprising:

• a slab width that is at least 2 feet, a slab length that extends perpendicular to the slab width and that is at least 6 feet, and a slab thickness that extends perpendicular to the slab width and the slab length, the slab length greater than the slab width, the slab width greater than the slab thickness;
• a front major surface defined by the slab width and the slab length;
• a rear major surface defined by the slab width and the slab length, wherein the rear major surface is parallel with the front major surface of the slab and distal from the front major surface by the slab thickness;
• and
• a plurality of striated veins, wherein each of the plurality of striated veins comprises a given particulate mineral mix, wherein at least one of the plurality of striated veins is at least partially visible on the front major surface and at least partially visible on the rear major surface at the same point on the slab.

A processed slab comprising:

• a slab width that is at least 2 feet, a slab length that extends perpendicular to the slab width and that is at least 6 feet, and a slab thickness that extends perpendicular to the slab width and the slab length, the slab length greater than the slab width, the slab width greater than the slab thickness;
• a front major surface defined by the slab width and the slab length;
• a rear major surface defined by the slab width and the slab length, wherein the rear major surface is parallel with the front major surface of the slab and distal from the front major surface by the slab thickness,
• wherein the front major surface has a predominantly striated appearance created by two or more particulate mineral mixes, wherein at least a portion of at least one of the two or more particulate mineral mixes occupies the entire slab thickness of at least one point on the slab.