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Formula: Zr
Zirconium is a transition metal that does not occur in the native state. When present in compounds, it exists
mostly in the quadrivalent state Zr4+. Its abundance in the Earth’s crust is 165 parts per million by mass,
38 parts per million by moles. In the Solar System its abundance is very much smaller, at 40 parts per billion by mass,
0.5 parts per billion by moles. It has a melting point of 1,850oC and a boiling point of 4,400oC.
Zirconium is generally exceptionally resistant to corrosion; it is however rapidly attacked by hydrofluoric
acid, even at low concentrations
(ChC).
Zirconium-bearing minerals include:
Oxides
baddeleyite
belyankinite
elbrusite
mirnyite
srilankite
zirconolite
Carbonates
sabinaite
weloganite
Phosphates
gainesite
kosnarite
malhmoodite
wycheproofite
Molybdates
kingsgateite
Nesosilicates
kimzeyite
zircon
Sorosilicates
baghdadite
bortolanite
gittinsite
hiortdahlite
lavenite
rosenbuschite
wöhlerite
Cyclosilicates
bobtraillite
calciocatapleiite
calciohilairite
catapleiite
eudialyte
ferrokentbrooksite
hilairite
lovozerite
sazykinaite-(Y)
selsurtite
sergevanite
wadeite
zolotarevite
Inosilicates
laverovite
vlasovite
Phyllosilicates
dalyite
elpidite
melansonite
Unclassified Silicates
terskite
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