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