It's copper - but not as we know it.
Artist Bernadine Bourke creates her beautiful artworks by layering copper wire and window glass together and heating it in a kiln, a process she calls "fusing".
What results is a colourful pattern suspended in glass.
Ms Bourke is one of more than 100 artists who will open their studios to the public for the 2014 Artists Open Studios Whanganui, over the weekends of March 22-23 and 29-30.
She has been working with her copper and glass creations for about five years. Her process developed out of night school courses and workshops, a year at the Wanganui Glass School, and a lot of personal experiments.