Know all about Tephrite and Borolanite properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite and Borolanite belong to Igneous Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Borolanite is Granular. Tephrite appears Vesicular and Borolanite appears Banded and Foilated. The luster of Tephrite is subvitreous to dull while that of Borolanite is greasy to dull. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Borolanite 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 Borolanite are cemetery markers.