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