Know all about Essexite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Essexite and Obsidian belong to Igneous Rocks.Texture of Essexite is Granular whereas that of Obsidian is Glassy. Essexite appears Banded and Obsidian appears Shiny. The luster of Essexite is not available while that of Obsidian is vitreous. Essexite is available in dark grey to black colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Obsidian are creating artwork, mirror, used in aquariums.