Selenite which is kind of translucent crystal allows the flame of the candle to flicker slightly through the walls of the candle holder. Edges of the candle holders are rough which is natural to selenite. Selenite mountain Candle Holders are shiny and sometimes with whiter areas. Top of each candle holder is polished and the underside is cut flat. Approx. size 8cm tall, x Diameter 8cm. Each holder can vary in style as there are hand cut.