Know all about Slate and Dacite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Dacite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Dacite is Aphanitic to Porphyritic. Slate appears Dull and Dacite appears Vesicular. The luster of Slate is dull while that of Dacite is subvitreous to dull. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Dacite is available in bluish - grey, brown, grey, light to dark grey 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 Dacite are commemorative tablets, creating artwork.