Found 14 Countertop CC0 textures in library

Granite 001 A

Granite 001 B

Granite 002 A

Granite 002 B

Granite 003 A

Granite 003 B

Granite 004 A

Granite 004 B

Granite 005 A

Granite 005 B

Granite 006 A

Granite 006 B

Granite 007 A

Granite 007 B