Know all about Tephrite and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite belongs to Igneous Rocks while Claystone belongs to Sedimentary Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Claystone is Clastic. Tephrite appears Vesicular and Claystone appears Rough and Dull. The luster of Tephrite is subvitreous to dull while that of Claystone is dull. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Claystone 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 Claystone are pottery.