Zirconium

Zirconium (symbol Zr) is a chemical element, a metal with atomic number 40 on the periodic table.

The USS Zirconium Star, a 23rd century transport ship, honored the element.

Characteristics and history
Trace amounts of zirconium reside in carbonatite, a substance resembling marble. 

In 1789, the element was first discovered in Germany. 

In 2269, zirconium's atomic mass was the answer to a question in a deadly illusory quiz between Spock and an Irapina on the planet Anomaly. 

Connections

 * Carbonatite