South Sea Pearls

  • The 60th Anniversary of The South Sea Pearl

    by Dr. L. E. Cartier, first published in Facette 23 (February 2017) The South Sea pearl oyster Pinctada maxima is known to produce white, cream and golden pearls. Such pearls are cultured mainly in Australia, Burma (Myanmar), Indonesia and the Philippines. Interestingly, 2016 marked the 60th anni...
  • Colour in cultured pearls has many causes

    Colour in cultured pearls has many causes, namely organic pigments and the water reservoir where the pearl shell is grown (sea water or freshwater) that has different manganese (Mn) concentrations with impact on nacre's colours. The mollusc species is, of course, one of the most important factors...
  • Fireball Fresh-Water Cultured Pearls

    Fireball pearl is the trade name for a type of beaded freshwater cultured pearl. Pearl farming in freshwater started to commercially develop in Japan in the 1960s in Lake Kasumigaura based on a new type of hybrid mussel made between the Japanese Hyriopsis schlegelii, and the Chinese Hyriopsis cum...