2814 Calcite, Barite, Heulandite, Red Bluff, Phillip Island, Bass Coast Shire, Victoria April 7, 2024 Steve Australasia Australia Victoria Red-fluorescing calcite crystals with minor heulandite (pictured) and barite. Width of view 6mm. Stack of 50 images. Click on the image below for a higher resolution version.
Peru South America 20047 Calcite, Quartz, Pachapaqui mining district, Bolognesi Province, Áncash, Peru April 20, 2020
Arkansas North and Central Americas United States 5627 Aegirine, Calcite, Jones Mill Quarry (Martin Marietta Quarry; Highway 51 Quarry; Mid-State Quarry), Magnet Cove, Hot Spring Co., Arkansas, USA October 5, 2019
Illinois North and Central Americas United States 20038 Calcite, Pyrite, Marcasite, Conco Mine, North Aurora, Kane Co., Illinois, USA October 27, 2019
Co. Antrim Northern Ireland United Kingdom 0443 Calcite, Magheramorne Quarry, near Glenarm, Co. Antrim, Northern Ireland September 19, 2019