Chrysoprase is a rare, highly valued, nickel-bearing variety of chalcedony. Colour varies from apple green to deep green, and the highest quality material is translucent. Chrysoprase is commonly known by gemologists as “Australian jade” and is often used in jewellery as a substitute for jade due to its harder wearing characteristics. Chrysoprase is highly valued in east Asia notably China.

  • Semi-precious gemstone
  • Genetic association with nickel-cobalt laterite
  • Five advanced chrysoprase pit projects
    • Run-of-mine chrysoprase: ~$8-20/kg
    • Gem quality: >$20/kg
  • Strong east Asian demand
  • Ardea is assessing opportunities
    • chrysoprase mining operation
    • chrysoprase focused spin-out