Make no mistake; zircons are not just one of the birthstones for December or a cheaper alternative to diamonds 💎 They are among the oldest rocks on the planet and can be tiny time capsules that hold some of the earliest history of Earth 🌏 #MineralMonday pic.twitter.com/Zy2Nmb5hJ3
— Geoscience Australia (@GeoscienceAus) December 17, 2018
via Twitter https://twitter.com/GeoscienceAus
December 17, 2018 at 07:19AM
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