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Talmessite: Ca2Mg(AsO4)2·2(H2O)
Comments: Translucent nearly colorless talmessite microcrystals. Location: Old Gold Hill Mine, Tooele County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Pale green, crystalline aggregates of talmessite on reddish, hematite-stained calcite. Location: Ourlil, Bou Azzer, Anti Atlas Mts., Morocco. Scale: Crystal size 4 mm. © John Veevaert
Comments: Vivid pink-colored talmessite crystalline aggregates scattered on matrix. Location: Bou Azzer, Morocco. Scale: Picture size 2 cm. © Sandro Maggia/Minernet.it