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:
Fluorine et galne sous U.V.Angleterre. fr cristaux de fluorite cristaux de galne sous UV Rogerley Mine Rogeley Quarry Frosterley Weardale North Pennines Durham Co England UK en crystals of fluorite crystals of galena Rogerley Mine Rogeley Quarry Frosterley Weardale North Pennines Durham Co England UK with UV own Parent Gry Image