What does zircon mean?
Zircon is a hard zirconium silicate mineral that occurs in many colors and can form exceptionally clear crystals. In jewelry, transparent and colored varieties are cut into gemstones that may resemble diamonds or other precious stones. The term also has an important geological use: because some zircon crystals contain uranium but little lead, they can be used to date the formation of rocks and help reconstruct the early history of Earth's crust. Natural zircon should not be confused with cubic zirconia, a laboratory-made material often marketed as an imitation diamond. The mineral's durability, brilliance, and scientific usefulness have made it valuable both as a gemstone and as a subject of research. Although historically mistaken for diamond in some cases, zircon has long been recognized and prized in its own right.
nounA zirconium silicate mineral that commonly forms hard, translucent or transparent crystals. Its attractive colorless and colored varieties are also cut and polished as gemstones.
- A translucent or transparent zirconium silicate mineral used as a gemstone and in the study of rocks.
- A gemstone cut from the mineral zircon.
"The jeweler set a flawless zircon in a slender gold ring."
"The museum displayed a 2,000-carat zircon that sparkled under the display lights."
"Geologists dated several zircons to determine the age of the volcanic rock."
The plural is used when referring to multiple crystals, grains, or gemstones of zircon.
"Researchers analyzed zircons from several volcanic layers."
A sparkling zircon may be mistaken for a diamond, but this ancient mineral is actually a distinctive zirconium silicate in its own right.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of zircon
The English word entered modern use through French zircon in the early 18th century. French had borrowed it from Persian zargun, meaning “gold-colored,” a reference reflecting the appearance of some golden varieties. The element name zirconium was subsequently derived from the mineral, and related English forms such as zirconia and zirconic continued the same naming tradition.
Related word forms
How zircon is actually used
In jewelry, zircon refers to the natural mineral and its gem varieties; it should not be confused with the synthetic cubic zirconia. In geology, the term can refer either to the mineral zircon or to individual crystals of it.
Easily confused with zircon
Zircon is a naturally occurring zirconium silicate mineral, whereas cubic zirconia is a synthetic material produced in laboratories and used as an imitation diamond.
A clear zircon may resemble a diamond when cut as a gemstone, but it is softer and has a different mineral composition.