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