Know all about Tephrite and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite belongs to Igneous Rocks while Mudstone belongs to Sedimentary Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Mudstone is Clastic. Tephrite appears Vesicular and Mudstone appears Rough and Dull. The luster of Tephrite is subvitreous to dull while that of Mudstone is dull. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Tephrite are production of lime, soil conditioner and that of Mudstone are creating artwork, pottery.