A disappointing earring, and the world's hottest rock: zirconia
- Written by Nick Timms, Senior Lecturer, Curtin University
Diamond or zirconia? Apart from the price, it can be hard to tell these two gems apart. from www.shutterstock.com My favourite gem is an occasional series in which we ask a scientist to share the fascinating geological and social features of a beautiful rock.
Just last week, my partner handed me an earring that she had found in a park near her home...