Slate

Slate: A very fine-grained metamorphic rock derived from sedimentary shale rock. They are often distinguished by their distinct cleft texture, which can occasionally release from stone; however, this is a natural occurrence, which in most cases does not compromise the integrity of the stone. Excellent stone for floor applications as it wears well with less maintenance than most stones. (This stone has a very nice appearance when a glossTopical Sealer is applied.)

Type of Stone– Metamorphic
Category– Siliceous
Scratch Resistance– Low to medium.
Porosity– Low to medium.
Acid Sensitivity– Low to medium.