Population bottlenecks are when population size reduces for a short period of time. Overpopulation may indicate any case in which the population of any species of animal may exceed the carrying capacity of its ecological niche.
The name zirconium comes from the mineral zircon, which is the most important source of the metal. The largest deposits of this mineral are found in Australia, Brazil, Russia, India, South Africa and the United States. Australia and South Africa are the largest miners of the mineral.
Zirconium mineral deposits are found all over the world. It is produced commercially by reduction of the chloride with magnesium, in addition to other methods. Uses of zirconium. Zircon (or zirconium oxide) has a high index of refraction and is used as a gemstone â probably zirconiumâs most well-known use.ord origin: The word zirconium derives from the Persian zargun, meaning gold-like. Zircon, the primary gemstone mineral of zirconium, is also known as jargon, hyacinth, jacinth and ligure. Zircon, and its variations, is mentioned in the Bible.