Definition of zircon
: a tetragonal mineral consisting of a silicate of zirconium and occurring usually in brown or grayish square prisms of adamantine luster or sometimes in transparent forms which are used as gems
Recent Examples of zircon from the Web
In 2013, a team of European and South African geologists published research showing that the island's rock actually contained zircon crystals that were billions of years older than the island itself.
The researchers recovered zircons as old as 3 billion years, Ashwal says in a press release.
The researchers collected samples of the mineral zircon, which can be used to calculate the age of rocks, from an island off the coast of Madagascar called Mauritius.
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Origin and Etymology of zircon
First Known Use: 1794See Words from the same year
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