‘Whether it's the rich deep blues and turquoise of Australian boulder opals, or the fierce orange hues of Mexican fire opals ... Deep within the Andes Mountains near San Patricio, Péan found the rare ...

"Our boulder opals in particular can only be found in western ... Besides wooing designers and potential buyers with deep blue sapphires and speckled opals, Mr Bone was riding another trend ...

Boulder opals form on ironstone in Queensland and are ... Red opal, also referred to as fire opal in Australia, is the rarest kind with blue being the most common. Because of its rarity, an ...