Mineral: Anhydrite with Chlorite
Locality: Simplon railway tunnel, Simplon pass area, Brig, Wallis (Valais), Switzerland
Dimensions: 4,0 x 3,0 x 8,0 cm

Description: Main crystal size : 7,9 cm Almost colorless transparent crystal (with slight lavender tinge on the bottom), terminated on both sides, with partial chlorite coating MIM number 1674 Photographer : Augustin de Valence (Ainu)

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