Mineral: Corundum (sapphire variety)
Locality: Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region (Mandalay Division), Myanmar (Burma)
Dimensions: 4 x 2.5 x 3.5 cm / main crystal size: 4.0 cm

Description: Mass: 45 g MIM number: 1736 Stack of flat hexagonal well formed blue crystals, the largest crystal being transparent with a beautiful deep blue color. Photographer : AINU / Augustin de Valence Publication: "Gemstones - Terra Connoisseur", "Paragénesis - Revista de Mineralogía 2019-2", “Mineralogical Record, Jan-Feb 2022”

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