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.
From a chemical point of view zircon is zirconium silicate. Gem name comes from the Persian word zargun. Translated from the Persian zar meaning is gold, and gun meaning is color.Consequently, zircon in that language means gold color gem. In addition to the most beautiful golden-yellow and red zircon gems found brown, yellowish-green and sky-blue stones.rom a chemical point of view zircon is zirconium silicate. Gem name comes from the Persian word zargun. Translated from the Persian zar meaning is gold, and gun meaning is color.