Know all about Rhyolite and Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite and Syenite belong to Igneous Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Syenite is Earthy. Rhyolite appears Banded and Syenite appears Banded and Foilated. The luster of Rhyolite is earthy while that of Syenite is subvitreous to dull. Rhyolite is available in grey, white, light black colors whereas Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry and that of Syenite are cemetery markers, creating artwork.