Know all about Dacite and Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Dacite and Syenite belong to Igneous Rocks.Texture of Dacite is Aphanitic to Porphyritic whereas that of Syenite is Earthy. Dacite appears Vesicular and Syenite appears Banded and Foilated. The luster of Dacite and Syenite is subvitreous to dull. Dacite is available in bluish - grey, brown, grey, light to dark grey colors whereas Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Dacite are commemorative tablets, creating artwork and that of Syenite are cemetery markers, creating artwork.