Abstract: An artificial stone slab comprises a plurality of coated lumps of composite stone material, wherein at least a first set of the plurality of coated lumps are substantially in contact with one another, and wherein at least a second set of the plurality of coated lumps are spaced apart by one or more fillers. An engineered stone slab comprises a plurality of coated lumps of composite stone material, wherein at least a portion of the coated lumps comprise an inner core having a first color and an outer layer having a second, different, color.

Abstract: There is provided an artificial marble that includes antimicrobial substance, wherein the antimicrobial substance comprises less that about 0.002% (dry weight) of the artificial marble composition.

Abstract: According to some embodiments, there is provided a method of producing a patterned artificial marble slab (2, 5, 11, 16). The method includes adhering one or more patterned substances (1) to a surface of the artificial marble slab, processing said artificial marble slab and removing said one or more patterned substances from the surface of the artificial marble slab, thereby obtaining an elevated or recessed pattern (3, 4, 6, 7, 9) on the surface of the artificial marble, wherein the elevated or recessed pattern has essentially the form of the patterned substances.

Abstract: An engineered stone slab has coated lumps of composite stone material, wherein at least a portion of the coated lumps comprise an inner core having a first property and an outer layer having a second property. The property may include color, texture, density, chemical composition, hardness, porosity or any combination thereof.

Abstract: Artificial marble, and system and method of producing artificial marble. A method of producing a stone slab comprises: placing into a frame a plurality of coated lumps of composite stone material; removing substantially all air among the plurality of lumps; pressing the content of said frame; and curing the content of said frame to form the stone slab. An artificial stone slab comprises: a plurality of coated lumps of composite stone material which are substantially in contact with one another.

Abstract: Engineered stone, and methods of manufacturing same. An engineered stone comprises: a surface of the engineered stone, wherein the surface comprises one or more pores; and a sealant mixture including a sealant material and a functional component, wherein the functional component modifies one or more properties of said engineered stone.

Abstract: A method for the preparation of an engineered stone slab having coated lumps of composite stone material, the method comprising: scooping a first inorganic particulate material and a polymer material to produce lumps of composite stone material; mixing a second inorganic particulate material with the lumps to produce coated lumps; and adding one or more colorants to the first inorganic particulate material, to the second inorganic particulate material, or to both the first and second inorganic particulate materials.