SEM image of ash particles from an unknown source volcano.
![SEM image of ash particles from an unknown source volcano....](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/vhp_img703.jpg?itok=uFWkuH9-)
Detailed Description
Sample collected from the Russian Far East and is presumed to be erupted from a volcano in Alaska. The platy shapes of the glass shards represent bubble wall fragments.