Figure 1. Mary Lou Osmond demonstrates the rich, vibrant color of Marlborough chrysoprase, which is due to high concentrations of nickel. Photo by Eric Welch. Mary Lou Osmond (Candala Chrysoprase, ...
Commercial quantities of gem-quality chrysoprase and green prase opal (nickel-bearing chalcedony and common opal, respectively) have been recovered from altered serpentinite deposits near Haneti, ...
The high-jewelry ring boasts a center 10.88-carat ... Piaget Foliatura bangle is set with diamonds and chrysoprase as leaves and a 6.59-carat cushion-cut ... [+] Colombian emerald on one side.
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