It composes about 18.2 ppm of air by volume (this is about the same as the molecular or mole fraction), and a smaller fraction in the crust.. 
Zirconium ( ) jẹ́ ìpilẹ̀ṣẹ̀ elegbogi pẹ̀lú àmì-ìdámọ̀ Zr àti nọ́mbà átọ́mù 40.ìtọ́kasí àwọn alásè kẹ́míkà.. 