Analytical market data of rough Zircon price per carat USD. How do we calculate this data? CLICK HERE
|MINERAL||SIZE||GRADE||CURRENT||CHANGE||YEAR HIGH||YEAR LOW||AVAILABILITY|
|Current and historical Zircon market price index:|
|Current price per carat by date 2016-2017.||Rough average pricing scale.
Price per carat by year end.
|Physical Properties of Zircon:|
|Chemical:||(ZrSiO4), Zirconium Silicate||
|Color:||Colorless, yellow, brown, orange, red violet, blue, green|
|Specific Gravity:||4.60 - 4.70|
|Hardness:||6.50 - 7.50|
|Luster:||Adamantine, Vitreous, Greasy|
|Refractive Index:||1.92 - 2.01|
|Transparency:||Transparent to Opaque|
Kola Peninsula, Ural Mountains, Pakistan, Afghanistan, Sri Lanka, Canada
Zircon occurs in many colors, including reddish brown, yellow, green, blue, gray and colorless. The color of zircon can sometimes be changed by heat treatment. Common brown zircons can be transformed into colorless and blue zircons by heating to 800 to 1000 °C. Zircon crystals grow in many different types of rock and possess a range of optical and physical properties. Zircon often contains traces of radioactive elements in its structure, which causes it to be metamict. Zircon (or zirconium oxide) has a high index of refraction and is used as a gemstone — probably zirconium’s most well-known use. The impure oxide, zirconia, is used for laboratory crucibles that withstand heat shock, for metallurgical furnace linings, and for refractory materials in glass and ceramics. Zircon is found in metamorphic rocks and silica-rich igneous rocks. It resists weathering, and because of its relatively high specific gravity, concentrates in stream and river gravels and beach deposits.