Know all about Scoria and Blue Granite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria and Blue Granite belong to Igneous Rocks.Texture of Scoria is Vesicular whereas that of Blue Granite is Phaneritic. Scoria appears Glassy and Vesicular and Blue Granite appears Shiny. The luster of Scoria and Blue Granite is subvitreous to dull. Scoria is available in black, brown, dark grey to black, red colors whereas Blue Granite 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 Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling.