Zircon
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Zircon is a mineral belonging to the group of nesosilicates and is a source of the metal zirconium. Its chemical name is zirconium silicate, and its corresponding chemical formula is ZrSiO4. An empiri
A lustrous crystal of zircon perched on a tan matrix of calcite from the Gilgit District of Pakistan
Optical microscope photograph; the length of the crystal is about 250 μm
Sand-sized grains of zircon
A pale blue zircon gemstone weighing 3.36 carats
Hafnium
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Hafnium is a chemical element; it has symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium mine
Pieces of hafnium
Hafnium dioxide (HfO2)