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