Know all about Oolite and Trondhjemite properties here. All properties of rocks are important as they define the type of rock and its application. Oolite belongs to Sedimentary Rocks while Trondhjemite belongs to Igneous Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Trondhjemite is Phaneritic. Oolite appears Rounded and Rough and Trondhjemite appears Banded and Foilated. The luster of Oolite is pearly to shiny while that of Trondhjemite is subvitreous to dull. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Trondhjemite is available in black, brown, light to dark grey, white colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Trondhjemite are cemetery markers, creating artwork.