Strunzite, Beraunite, Strengite
Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
Straw coloured Strunzite, Olive green Beraunite, and colourless,(with a hint of pinkish-purple), Strengite.
G.Curtis collection, Gravel Hill Beach, March 2017
© G.Curtis