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.
Introduction. The zirconium or zirconia (the Arabic zargun which means gold), in its purest form exists in two forms: the crystalline form, a soft metal, white, ductile, and the amorphous form, a powder-blue black viz: Zircon. A zirconium silicate, is the primary source of supply Baddeleyite.ntroduction. The zirconium or zirconia (the Arabic zargun which means gold), in its purest form exists in two forms: the crystalline form, a soft metal, white, ductile, and the amorphous form, a powder-blue black viz: Zircon. A zirconium silicate, is the primary source of supply Baddeleyite.