Black Obsidian Rollers Benefits
What Is Black Obsidian? Black obsidian is a common black gemstone, also known as “Dragon Crystal” and “Tokachi Stone”. Black obsidian is a natural colored glaze formed after the magma flowing out of volcanic lava suddenly cooled. Black obsidian is an amorphous gemstone with two main components-Silicon oxide (SiO2). Black obsidian can be processed into …