Know all about Essexite and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Essexite and Picrite belong to Igneous Rocks.Texture of Essexite is Granular whereas that of Picrite is Earthy, Rough. Essexite appears Banded and Picrite appears Rough and Shiny. The luster of Essexite is not available while that of Picrite is subvitreous to dull. Essexite is available in dark grey to black colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).