Know all about Adakite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Adakite and Obsidian belong to Igneous Rocks.Texture of Adakite is Porphyritic whereas that of Obsidian is Glassy. Adakite appears Dull and Soft and Obsidian appears Shiny. The luster of Adakite is grainy, pearly and vitreous while that of Obsidian is vitreous. Adakite is available in black, brown, light to dark grey colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Obsidian are creating artwork, mirror, used in aquariums.