Obsidian is a truth-enhancing stone. It is a strongly protective stone. Helps form a shield against negativity. Obsidian can help block out mental stress and tension.
Obsidian is a igneous rock occurring as a natural glass formed by the rapid cooling of lava from volcanoes. Though obsidian is usually jet-black in color, when there is a presence of hematite (iron oxide) it can create red and brown varieties.