Mineral: Corundum (variety sapphire)
Dimensions: 9.5 x 4.5 x 4.0 cm
Description: Main crystal size: 9.1 cm
Double terminated, barrel-shaped crystal, not curved and very sharp-edged, translucent with a blue center and yellow towards the edges.
MIM number: 313
Photographer: AINU / Augustin de Valence
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