Know all about Tephrite and Sandstone properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite belongs to Igneous Rocks while Sandstone belongs to Sedimentary Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Sandstone is Clastic, Granular, Rough. Tephrite appears Vesicular and Sandstone appears Rough. The luster of Tephrite is subvitreous to dull while that of Sandstone is dull. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Sandstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Tephrite are production of lime, soil conditioner and that of Sandstone are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.