Mineral: Sanidine
Locality: Itrongay (Itrongahy), Mahasoa East Commune, Betroka District, Anosy Region, Madagascar
Dimensions: 10,0 x 4,0 x 7,5 cm

Description: Main crystal size : 10,7 cm Transparent, yellow single crystal with some internal veils and a very sharp-edged upper part with very clear, classic faces of orthoclase MIM number 723 Photographer : Augustin de Valence (Ainu)

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