Mineral: Londonite
Locality: Ambatomigaby pegmatite, Ampanivana, Andrembesoa, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Dimensions: 3.5 x 2.5 x 2.5 cm

Description: Mass: 30 g MIM number:1747 Single floating crystal with a yellow-green color and very geometric form, most of its faces being slightly rough while the others are relatively smooth Photographer: AINU / Augustin de Valence

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