Know all about Tephrite and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite belongs to Igneous Rocks while Skarn belongs to Metamorphic Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Skarn is Earthy, Mud-rich, Rough. Tephrite appears Vesicular and Skarn appears Dull. The luster of Tephrite is subvitreous to dull while that of Skarn is waxy and dull. Tephrite and Skarn are available in black, brown, colourless, green, grey, white colors. The commercial uses of Tephrite are production of lime, soil conditioner and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).