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:
Dawsonite. View window mm Found May MOB coll Typical small prism of striated dawsonite from this find It was associated with very pale to very deep blue sodalite See File Dawsonite for pointers to other dawsonite habits at Mont SaintHilaire Dawsonit Sichtfeld mm Fundort Steinbruch Poudrette Demix UniMix Desourdy Mont SaintHilaire