Know all about Ganister and Websterite properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Websterite belongs to Igneous Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Websterite is Clastic, Granular, Phaneritic, Porphyritic. Ganister appears Rough and Websterite appears Layered, Banded, Veined and Shiny. The luster of Ganister is dull while that of Websterite is dull to vitreous to submetallic. Ganister is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones and that of Websterite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.