Rock made of plastic turns up on Hawaii beach
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/06/plastic20rocks_free.jpg?fit=860%2C460&ssl=1)
This example of a newly named rock, called plastiglomerate, is made of lava rock, green and red netting, yellow rope and melted plastic. A pencil (lower left), used for scale, shows that the plastic-bound rocks can get pretty big.
P. Corcoran et al/GSA Today 2014