What is Spinel?
Spinel is magnesium aluminium oxide. It forms sharp octahedral crystals in red, pink, blue and black; many famous "rubies" in royal crowns are actually red spinel.
Sources include Myanmar, Sri Lanka, Tanzania and India.
Care & cleaning
Clean with lukewarm water, a drop of mild soap and a soft brush, then dry with a soft cloth. Store apart from softer stones to avoid scratches.
