This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Utah Museum of Natural History . Lava bomb in the Utah Museum of Natural History Salt Lake City Utah USA own Daderot Public domain Volcanic bombs in the United States Minerals in the Natural History Museum of Utah
Page 2023 Free-images.com. All images are Public Domain