Found 10 Dark grey CC0 textures in library

Decorative Ceramic 27

Decorative Ceramic Wall Tile 29

Graphite Brushed Marble

Marble 19

Nacarado Dark Grey Granite

Nacarado Dark Grey Quartzite

Nacarado Quartzite

Nero Zimbabwe Marble

Nosiette Grigio Marble

Oyster Grey Quartzite