Zircon Application

• Zircons are commercially mined for the metal zirconium, and are used for abrasive and insulating purposes.
• It is the source of zirconium oxide (ZrO2), one of the most refractory materials known.
• Crucibles of ZrO2 are used to fuse platinum at temperatures in excess of 1755 oC.
• Zirconium metal is used in nuclear reactors due to its neutron absorption properties.
• Large specimens are appreciated as gemstones, owing to their high refractive index. (Zircon has a refractive index of approximately 1.95; diamond's is approximately 2.4.)
• Zircon is one of the key minerals used by geologists for geochronology .
• Zircon is a part of the ZTR index to classify highly-weathered sediments.
• Micronized Zirconium Silicate is used as glaze opacifier in the ceramic tile and ware industry.
• Zircon is used in the production of glazes and frits for ceramic and glass, foundry, refractory, sand blasting, brake lining, and other chemicals.


Knowledge center

Zircon is a common accessory to trace mineral constituent of most granite and felsic igneous rocks. Due to its hardness, durability and chemical inertness, zircon persists in sedimentary deposits and is a common constituent of most sands. Zircon is rare within mafic rocks and very rare within ultramafic rocks aside from a group of ultrapotassic intrusive rocks such as kimberlites, carbonatites, and lamprophyre, where zircon can occasionally be found as a trace mineral owing to the unusual magma genesis of these rocks.

Zircon forms economic concentrations within heavy mineral sands ore deposits, within certain pegmatites, and within some rare alkaline volcanic rocks, for example the Toongi Trachyte, Dubbo, New South Wales Australia[8] in association with the zirconium-hafnium minerals eudialyte and armstrongite.

(Source : Wikipedia.org)