Commodity Code


alt label
chrysophrase more like this
chrysoprasus more like this
prase more like this
definition A variety of chalcedony 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 prase. (However, the term prase is also used to describe chlorite-included quartz, and to a certain extent is a color-descriptor, rather than a rigorously defined mineral variety.) more like this
notation more like this
Chrys more like this
source more like this
broader chalcedony
narrower chrysoprase
in scheme commodity code
is primary topic of chrysoprase