Know all about Gabbro and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Gabbro and Tephrite belong to Igneous Rocks.Texture of Gabbro is Phaneritic whereas that of Tephrite is Aphanitic to Porphyritic. Gabbro appears Veined and Shiny and Tephrite appears Vesicular. The luster of Gabbro is not available while that of Tephrite is subvitreous to dull. Gabbro is available in dark grey to black colors whereas Tephrite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Tephrite are production of lime, soil conditioner.