  The earth's mantle is not made of metal but is a mixture of many somewhat molten rocks, most as oxides, meaning the mantle may be more oxygen than metal. The metals it â¦ has the most of are magnesium, iron, and aluminum. There's also lots of silicon, which is not really a metal. 6 people found this useful.
We are the leading aftermarket supplier of used cosmetic lasers and used aesthetic laser systems. The Cosmetic Laser Warehouse stocks a large selection of pre-owned cosmetic laser equipment and cosmetic laser handpieces. We are not medical laser brokers. Most websites on the internet are broker operated.
10/5/2009 ECE 1461 - 2009 - PRHerman 2. Laser Types âI. ï® For More Depth: Follow Svelto: Principles of Lasers 4thEd; Reading sections identified below. ï® Also useful: Hechtsâ The Laser Guidebook. ï® Types of Lasers. ï® 9.2 Solid State Lasers: glass, crystal; not Semiconductor. ï® 9.2.2.1 Nd:Yag Laser; 9.2.2.2 Nd: Glass.