1034 Erionite-K, Heulandite, Malpais Hill, Dudleyville, Pinal Co., Arizona, USA July 25, 2021 Steve Arizona North and Central Americas United States Colourless blocky coffin-shaped heulandite crystals with colourless prisms of erionite-K. Width of view 3.5mm. Stack of 55 images. Click on the image below for a higher resolution version.
North and Central Americas United States Washington ncat JSM Analcime, Heulandite, Four Mile Quarry, Porter, Grays Harbor Co., Washington, USA November 12, 2021
Co. Antrim Northern Ireland United Kingdom 4305 Erionite-K, Port Na Boe, Giants Causeway, Co. Antrim, Northern Ireland October 5, 2019
Australasia New Zealand 9024 JP2257 Heulandite, Whitianga Road cutting, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, North Island, New Zealand June 4, 2020