Know all about Scoria and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria and Tephrite belong to Igneous Rocks.Texture of Scoria is Vesicular whereas that of Tephrite is Aphanitic to Porphyritic. Scoria appears Glassy and Vesicular and Tephrite appears Vesicular. The luster of Scoria and Tephrite is subvitreous to dull. Scoria is available in black, brown, dark grey to black, red colors whereas Tephrite is available in black, brown, colourless, green, 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 Tephrite are production of lime, soil conditioner.