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