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.
The short story is this: 1  Igneous; they form from the cooling of magma deep inside the earth. 2  They often have large crystals (you can see then with the naked eye). 3  Metamorphic; they are formed through the change (metamorphosis) of igneous and sedimentary rocks. 4  They can form both underground and at the surface.