Know all about Diabase and Soapstone properties here. All properties of rocks are important as they define the type of rock and its application. Diabase belongs to Igneous Rocks while Soapstone belongs to Metamorphic Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Soapstone is Polished. Diabase appears Vesicular and Soapstone appears Dull, Banded and Foilated. The luster of Diabase is not available while that of Soapstone is greasy. Diabase is available in dark grey to black colors whereas Soapstone is available in black, black to grey, green, grey 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 Soapstone are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo).