Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony that contains small quantities of nickel. Its color is normally apple-green, but varies to deep green. Although a different mineral, chrysoprase is often referred to as Australian Jade! 

Chrysoprase is a powerful stone that brings good fortune and prosperity. It instills you with poise, grace and helps you to recognize the gentle beauty within yourself so you can enjoy self-expression and courage through fluent speech and mental dexterity.

The best known sources of chrysoprase are Indonesia, Queensland, Western Australia, Haneti Tanzania, Germany, Poland, Russia, Arizona, California, and Brazil. Deposits in central Tanzania have been in constant production since 1986.