Mineral: Sanidine
Locality: Itrongay (Itrongahy), Mahasoa East Commune, Betroka District, Anosy Region, Madagascar
Dimensions: 9 x 13 x 10.5 cm

Description: Mass: 1500 g MIM number:1912 Large, very well formed crystal of pastel green color, partly transparent, showing very clearly the classic faces of the orthoclase. The lateral faces show, in some places, figures of dissolution. Photographer: AINU / Augustin de Valence

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