Know all about Hawaiite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Hawaiite and Obsidian belong to Igneous Rocks.Texture of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Obsidian is Glassy. Hawaiite appears Dull and Soft and Obsidian appears Shiny. The luster of Hawaiite is not available while that of Obsidian is vitreous. Hawaiite 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 Hawaiite are creating artwork, sea defence and that of Obsidian are creating artwork, mirror, used in aquariums.