Know all about Slate and Mugearite properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Mugearite belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Mugearite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Slate appears Dull and Mugearite appears Dull and Soft. The luster of Slate is dull while that of Mugearite is not available. Slate and Mugearite are available in black, brown, buff, green, light to dark grey, purple, red, 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 Mugearite are creating artwork.