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.
Keywords from Image Description:
Volcanic dust Mount Soufriere YORYMTA. Microscope slide showing dust particles Viewed in planepolarized light depicted people depicted place Black and White glass Lantern slide Institution Yorkshire Museum Natural History object history exhibition history credit line Yorkshire Museum York Museums Trust accession number YORYM TA