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