Know all about Oil shale and Talc carbonate properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale belongs to Sedimentary Rocks while Talc carbonate belongs to Metamorphic Rocks.Texture of Oil shale is Splintery whereas that of Talc carbonate is Very Soft. Oil shale appears Muddy and Talc carbonate appears Soft. The luster of Oil shale is dull while that of Talc carbonate is pearly. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Talc carbonate is available in colourless, grey, white colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Talc carbonate are manufacturing of baby powder.