1 Facts
1.1 Interesting Facts
Not Available
1.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Robert Bunsen and Gustav Kirchhoff
1.3.2 Discovery
In 1860
1.4 Abundance
1.4.1 Abundance In Universe
1.4.2 Abundance In Sun
1.4.3 Abundance In Meteorites
1.4.4 Abundance In Earth's Crust
1.4.5 Abundance In Oceans
1.4.6 Abundance In Humans