Mineral: Dadsonite with Siderite
Locality: Saint-Pons area, Barcelonnette, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France
Dimensions: 7 x 7.5 x 5.5 cm

Description: Saint-Pons, Val d'Ubaye, Alpes de Haute-Provence, France Mass: 288 g MIM number: 2248 Bundle of parallel acicular crystals of metallic gray color developed on a matrix of siderite. Dadsonite is distinguished from usual sulfosalts by a formula incorporating a chlorine atom. Photographer: AINU / Augustin de Valence

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