Know all about Scoria and Comendite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria and Comendite belong to Igneous Rocks.Texture of Scoria is Vesicular whereas that of Comendite is Porphyritic. Scoria appears Glassy and Vesicular and Comendite appears Foliated. The luster of Scoria is subvitreous to dull while that of Comendite is dull. Scoria is available in black, brown, dark grey to black, red colors whereas Comendite is available in blue, bluish - grey 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 Comendite are cemetery markers.