Flagstone, cut by hand, irregular shapes, offered in different sizes.
Granite is a magmatic rock, not limestone.
Ultra resistant to abrasives, shocks and temperature changes.
Granite comes in different shades (gray, pink or black) and variegated mottles.
Granite has the particularity of always having a flat side and very few asperities, which gives it a more uniform appearance. Of course, this facilitates the installation.