The periodic table of the elements. Click on an element to find out details about this element and related mineralogy. Elements in a darker shade of grey are not found in natural minerals but some may be found in trace amounts in the Earth.
Dmitry Mendeleev - father of the Periodic Table, and mineral collector
Dmitri Mendeleev in 1897
Most people are aware of Russian scientist Dmitry Mendeleev, who first proposed the Periodic Table of the Elements to the world back in 1869. But fewer people know that he was also a mineral collector. And fortunately his collection is still intact and on display in St. Petersburg University in Russia.