5788 Alum, Calcite, Ash Canyon, Truth or Consequences, Sierra Co., New Mexico, USA July 18, 2022 Steve New Mexico North and Central Americas United States Fibrous white alum with calcite (it dissolves leaving alum). Visual ID by Rolf Leutcke photo in Mindat. Collected by Mike Reinke. Width of view 6.5mm. Stack of 20 images. Click on the image below for a higher resolution version.
Australasia Australia Victoria ncat VHD4, Calcite, Ferroan Calcite, Boral Quarry, Bundoora, Victoria November 17, 2019
Asia China 5135 Arsenopyrite, Calcite, Yao Gan Xian Mine, Leiyang Co., Hunan Province, China September 29, 2019
Argyll and Bute Scotland United Kingdom 3820 Calcite, Middleshop Mine, Strontian, Argyllshire, Scotland October 3, 2019
Australasia Australia Victoria ncat JP360 Chabazite-K, Calcite, Tylden quarry, Tylden, Macedon Ranges Shire, Victoria September 23, 2019