Know all about Essexite and Minette properties here. All properties of rocks are important as they define the type of rock and its application. Essexite and Minette belong to Igneous Rocks.Texture of Essexite is Granular whereas that of Minette is Porphyritic. Essexite appears Banded and Minette appears Dull, Banded and Foilated. The luster of Essexite is not available while that of Minette is subvitreous to dull. Essexite is available in dark grey to black colors whereas Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Minette are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).