Zircon forms in silicate melts with large proportions of high field strength incompatible elements.For example, hafnium is almost always present in quantities ranging from 1 to 4%.The energies involved are so large, and the nucleus is so small that physical conditions in the Earth (i.e. The rate of decay or rate of change of the number N of particles is proportional to the number present at any time, i.e.
After the passage of two half-lives only 0.25 gram will remain, and after 3 half lives only 0.125 will remain etc.
All ordinary matter is made up of combinations of chemical elements, each with its own atomic number, indicating the number of protons in the atomic nucleus.
Additionally, elements may exist in different isotopes, with each isotope of an element differing in the number of neutrons in the nucleus.
Zircon is also very resistant to heat and corrosion.
Because of their uranium and thorium content, some zircons undergo metamictization.