Know all about Marl and Dacite properties here. All properties of rocks are important as they define the type of rock and its application. Marl belongs to Sedimentary Rocks while Dacite belongs to Igneous Rocks.Texture of Marl is Earthy whereas that of Dacite is Aphanitic to Porphyritic. Marl appears Rough and Dull and Dacite appears Vesicular. The luster of Marl is dull while that of Dacite is subvitreous to dull. Marl is available in beige, brown, green, grey, white colors whereas Dacite is available in bluish - grey, brown, grey, light to dark grey colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Dacite are commemorative tablets, creating artwork.