The cut of a fine opal should be symmetrical. If it’s a cabochon, the dome should be well rounded. Domed surfaces give the best play-of-color, and make the stone appear vivid from most viewing angles.
Street Talk can reveal the Sydney buyout firm has gained exclusivity over a 50 per cent stake in Australia’s largest residential aged care provider, Opal HealthCare, which was put up for sale in ...
Petrified wood forms through a process known as permineralization, which happens under very specific conditions. It all starts with the burial of organic plant material—trees and other types of ...