This spiky mystery rock from Alaska is made of glendonite
By Coastal and Marine Hazards and Resources Program
2017 (approx.)
![Photo of a spiky brown rock with many dull points in all directions on a white background](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Glendonite.jpg?itok=jSKozXVm)
Detailed Description
This spiky mystery rock from Alaska is made of glendonite. Sample collected by Bruce Richmond, Ann Gibbs, and Li Erikson, USGS.
Sources/Usage
Public Domain.