Mineral: Anhydrite with Dolomite
Locality: Simplon railway tunnel, Simplon pass area, Brig, Wallis (Valais), Switzerland
Dimensions: 7 x 4.5 x 8 cm / main crystal: 7.1 cm.

Description: Mass: 217 g MIM number:1870 Large floating rectangular transparent, lilac colored doubly terminated crystal. The faces are striated and studded with small cream colored dolomite crystals. Several sidecar smaller anhydrite crystals are attached at the back of the specimen. Photographer: AINU / Augustin de Valence Publication: "Lapis, Jg. 27, Nr. 10, Oct. 2002"

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