Sapphire in schist matrix – Zazafotsy, Ihosy, Ihorombe, Madagascar

The 1.5 cm long, undamaged sapphire crystal stands out in contrast from the black, shiny slate matrix. The blue of the sapphire is particularly intense and shows violet tones depending on the incidence of light.
Wonderfully aesthetic and high quality collector's piece from Africa.
Under longwave the crystal shows a red-violet fluorescence.