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Cubic zirconia (abbreviated CZ) is the cubic crystalline form of zirconium dioxide (ZrO 2 ). The synthesized material is hard and usually colorless, but may be made in a variety of different colors. It should not be confused with zircon, which is a zirconium silicate (ZrSiO 4 ). It is sometimes erroneously called cubic zirconium .
The princess cut (technical name 'square modified brilliant') is a diamond cut shape often used in engagement rings. The name dates back to the 1960s, while the princess cut as it exists was created by Betazel Ambar, Ygal Perlman, and Israel Itzkowitz in 1980. The cut has a square or rectangular shape when viewed from above, and from the side ...
Zirconium dioxide ( ZrO. 2 ), sometimes known as zirconia (not to be confused with zircon ), is a white crystalline oxide of zirconium. Its most naturally occurring form, with a monoclinic crystalline structure, is the mineral baddeleyite. A dopant [clarification needed] stabilized cubic structured zirconia, cubic zirconia, is synthesized in ...
On 'Antiques Roadshow,' a woman brought in a ring she won at an auction about two or three years ago. She paid just $30 for it, thinking it was just a cubic zirconia.
Zircon ( / ˈzɜːrkɒn, - kən /) [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. An empirical formula showing some of the range of substitution in zircon is (Zr 1–y, REE y ) (SiO 4) 1–x ...
Get a first look at the cover of "Onyx Storm," the third book in Rebecca Yarros' "Empyrean" series set in the world of "Fourth Wing."
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