Know all about Kimberlite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Kimberlite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Kimberlite is Porphyritic whereas that of Siltstone is Clastic. Kimberlite appears Dull and Banded and Siltstone appears Rough. The luster of Kimberlite is subvitreous to dull while that of Siltstone is dull. Kimberlite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Kimberlite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.