Know all about Scoria and Blueschist properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Blueschist belongs to Metamorphic Rocks.Texture of Scoria is Vesicular whereas that of Blueschist is Foliated. Scoria appears Glassy and Vesicular and Blueschist appears Dull and Banded. The luster of Scoria is subvitreous to dull while that of Blueschist is dull. Scoria is available in black, brown, dark grey to black, red colors whereas Blueschist is available in blue, bluish - grey, purple, shades of blue 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 Blueschist are cemetery markers, commemorative tablets, creating artwork, curling, tombstones.