Found 13 Travertine CC0 textures in library

Persian Silver Travertine
Red Layer Travertine
Roman Travertine
Rosso Levanto Travertine
Rustic Silver Grey Travertine
Travertine 1
Travertine 1-2
Travertine 1-3
Travertine 2
Travertine 2-1
Travertine 2-3
Travertine 2-4
Travertine 4