Liddicoatite

Cut and polished slice of Liddicoatite (a species of Tourmaline) from old finds in Madagascar. Cur parallel to the C-axis, the slice reveals the colorful interior of what would have appeared to otherwise be a dark crystal. Dark rind followed by blue and green color zoning, then finally a bright pink, triangular transparent central zone. Well polished on both sides, weighs 8.05 grams.