Know all about Slate and Blueschist properties here. All properties of rocks are important as they define the type of rock and its application. Slate and Blueschist belong to Metamorphic Rocks.Texture of Slate is Foliated whereas that of Blueschist is Foliated. Slate appears Dull and Blueschist appears Dull and Banded. The luster of Slate and Blueschist is dull. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Blueschist is available in blue, bluish - grey, purple, shades of blue colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates and that of Blueschist are cemetery markers, commemorative tablets, creating artwork, curling, tombstones.