1 Removes water damage, stains, lime scale from any glass surface. 2  Our easiest to use kit is ideal solution for DIY repairs. 3  Designed to be used with electric drill (at recommended speed 1500 - 2000rpm)  Safe to use - Distortion Free, Comes with easy to follow step by step instruction.
The best obsidian is formed underground near a volcanic vent because those rocks will have limited impurities. Obsidian flows are so slow that often other obsidian flows will occur on top of each other causing a streaked appearance in the obsidian rock.he result is a rock that cooled so fast, crystals did not get a chance to form. Obsidian is a volcanic glass with a smooth and uniform structure. Interesting Obsidian Rock Facts: Different varieties of obsidian rock get their names from their appearance.
Obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure.It is an amorphous material known as a  mineraloid ..The result is a volcanic glass with a smooth uniform texture that breaks with a conchoidal fracture (see photo on right). Obsidian is usually an extrusive rock-one that solidifies above Earth's surface.However, it can form in a variety of cooling environments: Black is the most common color of obsidian.he first use of obsidian by people probably occurred when a sharp piece of obsidian was used as a cutting tool. People then discovered how to skillfully break the obsidian to produce cutting tools in a variety of shapes.