Know all about Scoria and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria and Diorite belong to Igneous Rocks.Texture of Scoria is Vesicular whereas that of Diorite is Phaneritic. Scoria appears Glassy and Vesicular and Diorite appears Shiny. The luster of Scoria is subvitreous to dull while that of Diorite is shiny. Scoria is available in black, brown, dark grey to black, red colors whereas Diorite is available in black, brown, light to dark grey, white colors. The commercial uses of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills and that of Diorite are creating artwork, curling.