Know all about Diabase and Flint properties here. All properties of rocks are important as they define the type of rock and its application. Diabase belongs to Igneous Rocks while Flint belongs to Sedimentary Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Flint is Banded, Rough. Diabase appears Vesicular and Flint appears Glassy or Pearly. The luster of Diabase is not available while that of Flint is vitreous. Diabase is available in dark grey to black colors whereas Flint is available in black, brown, green, grey, red, 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 Flint are creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms.