Chrysophrase Green Pear Faceted Natural Beads 8 Inches StrandsChrysoprase, chrysoprase or chrysoprase's is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel. Its color is normally apple green, but varies to deep green. The darker varieties of chrysoprase are also referred to as parse. (However, the term parse is also used to describe chlorite included quartz, and to a certain extent is a color descriptor, rather than a rigorously defined mineral