Brilliantly lustrous calcite crystals with a small included realgar crystal from Shimen, China. The large calcite has a myriad of faces – they are actually a later overgrowth, over a greyer core crystal (with little lustre) underneath. The calcites are twinned – the composition plane is visible on both crystals. No damge from the display side (a couple of nicks around back) and the terminations are perfect. Great low price, as I was able to buy it at a good price. Sweet piece.