Know all about Scoria and Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria and Syenite belong to Igneous Rocks.Texture of Scoria is Vesicular whereas that of Syenite is Earthy. Scoria appears Glassy and Vesicular and Syenite appears Banded and Foilated. The luster of Scoria and Syenite is subvitreous to dull. Scoria is available in black, brown, dark grey to black, red colors whereas Syenite is available in brown, buff, cream, green, grey, pink, 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 Syenite are cemetery markers, creating artwork.