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