Know all about Tonalite and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Tonalite and Tephrite belong to Igneous Rocks.Texture of Tonalite is Phaneritic whereas that of Tephrite is Aphanitic to Porphyritic. Tonalite appears Banded and Foilated and Tephrite appears Vesicular. The luster of Tonalite and Tephrite is subvitreous to dull. Tonalite is available in black, brown, light to dark grey, white colors whereas Tephrite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Tonalite are cemetery markers, creating artwork and that of Tephrite are production of lime, soil conditioner.