Mineral: Grandidierite
Locality: Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region, Madagascar
Dimensions: 4 x 5.5 x 4 cm / main crystal: 3.5 cm

Description: Mass: 52 g MIM number: 2000 Doubly terminated, very well formed, translucent, light blue-green crystal on a feldspar matrix. It is rare to find a grandidierite as well formed on matrix (curiously free crystals are better formed while those on matrix have almost always indistinct terminations). Photographer: AINU / Augustin de Valence Publication: "Le Règne Minéral #138: Nov-Déc 2017"

All pictures, text, design © Forum FMF 2006-2025