|Nomenclature:||Named after the Greek words chrysos and prason which means "gold" and "a leek" respectively because of its color.|
|Additional Notes:||Chrysoprase is a variety of chalcedony that is impregnated with nickel compounds to produce a bright yellow-green color. Chalcedony is a cryptocrystalline (crystals of sub-microscopic size) variety of quartz with a somewhat waxy appearance.|
Chrysoprase (Quartz - Chalcedony)
11 Jul 1973
The stamp shows a natural, unpolished specimen
and a polished gemstone.
|http://mineralstamps.rbnet.net/chrysoprase.htm||Philatelic Mineralogy||Copyright © 1997-2010 by Richard Busch|