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Zircon (/ ˈ z ɜːr k ɒ n,-k ən /) [7] [8] [9] is a mineral belonging to the group of nesosilicates and is a source of the metal zirconium. Its chemical name is zirconium(IV) silicate , and its corresponding chemical formula is Zr SiO 4 .
Dispersion is very high at 0.058–0.066, exceeding a diamond's 0.044. Cut: Cubic zirconia gemstones can be cut differently than diamonds: The facet edges can be rounded or "smooth". Color: only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown to some extent.
A diamond simulant, diamond imitation or imitation diamond is an object or material with gemological characteristics similar to those of a diamond. Simulants are distinct from synthetic diamonds , which are actual diamonds exhibiting the same material properties as natural diamonds.
Zircon (ZrSiO 4) and cubic zirconia (ZrO 2) are cut into gemstones for use in jewelry. Zirconium dioxide is a component in some abrasives, such as grinding wheels and sandpaper. [49] Zircon is also used in dating of rocks from about the time of the Earth's formation through the measurement of its inherent radioisotopes, most often uranium and ...
Heavy minerals (dark) in a quartz beach sand (Chennai, India).Heavy mineral sands are a class of ore deposit which is an important source of zirconium, titanium, thorium, tungsten, rare-earth elements, the industrial minerals diamond, sapphire, garnet, and occasionally precious metals or gemstones.
The zircon has strong refractive power, and its lustre is almost adamantine, but it lacks the fire of the diamond. The specific gravity of zircon is subject to considerable variation in different varieties; [dubious – discuss] thus Sir A. H. Church [verification needed] found the specific gravity of a fine leaf-green jargoon to be as low as 3 ...