Know all about Tephrite and Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite and Trachyandesite belong to Igneous Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Tephrite appears Vesicular and Trachyandesite appears Dull and Soft. The luster of Tephrite is subvitreous to dull while that of Trachyandesite is earthy. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Tephrite are production of lime, soil conditioner and that of Trachyandesite are creating artwork, pottery.