All about Obsidian and Gneiss Properties
Know all about Obsidian and Gneiss properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks.Texture of Obsidian is Glassy whereas that of Gneiss is Banded, Foliated, Platy. Obsidian appears Shiny and Gneiss appears Foliated. The luster of Obsidian is vitreous while that of Gneiss is dull. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Gneiss is available in black, brown, pink, red, white colors. The commercial uses of Obsidian are creating artwork, mirror, used in aquariums and that of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums.