home *** CD-ROM | disk | FTP | other *** search
- Aluminum is a light metal, abundant in the Earth's crust, but rarely
- found free in nature. Its alloys are commonly used, but pure aluminum is
- soft. When first discovered, it was extremely expensive, and European
- nobility sometimes ate using aluminum flatware. The top of the
- Washington Monument is capped with aluminum, obtained from gemstones. It
- is obtained by refining bauxite.