Announcement

Collapse
No announcement yet.

VI. Common Mabe Pearl Varieties - B. Mother-of-Pearl Oysters (genus Pinctada)

Collapse
X
Collapse
  •  

  • VI. Common Mabe Pearl Varieties - B. Mother-of-Pearl Oysters (genus Pinctada)

    B. Mother-of-Pearl Oysters (genus Pinctada)

    Black Lip Pearl oysters (Pinctada margaritifera)

    Black lip pearl oysters are known mainly for their beautiful, dark, cultured pearls but they have also been used to produce Mabe pearls, although in not great numbers.

    Part of the production strategy for Mabe pearls in French Polynesia and Fiji is at the very last part of the pearl producing cycle:
    Cultured (loose) pearls are produced for up to three cycles (first, second and third grafts), and then the pearl oyster is seeded with up to 4 Mabe implants (but with 3 being the average) and then left to grow for 18 additional months. At harvest time, the Mabe blisters and keshi pearl are obtained. Mabe implants are usually placed near the outer edge of the oyster’s shell, where the most pleasing colors are found. Unfortunately, being placed near the edge makes the shapes less round.
    Click image for larger version

Name:	Pinctada_margaritifera_shell_inside mabe.jpg
Views:	803
Size:	28.9 KB
ID:	455295

    This photo is used by courtesy of The Gemology Project.

    Mabe pearls from this species are whimsical in their shapes, their color ranging from a light to dove gray color, sometimes with a rainbow-like band of green and lavender.
    Click image for larger version

Name:	Margaritifera-Mabe.jpg
Views:	24
Size:	71.2 KB
ID:	455296

    Assorted, Black-lipped oyster (Pinctada margaritifera) Mabe Pearls.

    Silver Lip Pearl Oysters (Pinctada maxima)

    The largest of the pearl oysters is quite know for its silvery white and hemispherical Mabe pearls. As in the case of black-lipped oysters, these “South Sea Mabe” are usually grown in large, adult, silver lipped pearl oysters, usually at the end of their pearl culturing cycle. The first South Sea Mabe pearls were exported to Europe in 1958.

    Mabe pearls may be harvested after a pearl growth period of at least 10 to 12 months -sometimes up to 18 months- after being implanted in the oysters. Because these are rather large pearl oysters (16 cm or larger) they may accept more Mabe inserts than all other species, up to 8 per oyster (4 per valve/shell), but 4 to 6 inserts are used on average. Sometimes, instead of growing several Mabe, the producer may choose to create fewer but larger pieces (up to 20 mm)
    Click image for larger version

Name:	Pinctada-maxima-Mabes.jpg
Views:	26
Size:	97.3 KB
ID:	455297

    A beautiful “Gold-lip pearl shell” displaying three Mabe blisters and a large South Sea pearl.

    The colors available for South Sea Mabe pearls are basically the same as in their cultured pearl counterparts: white, silver and champagne. The typical shape is the “Classic Mabe” shape, which is the perfect hemispherical dome, but sometimes other shapes (such as drops and hearts) are also used. South Sea Mabe are produced in Australia, Indonesia, and the Philippines.
    Click image for larger version

Name:	SSP Mabe.gif
Views:	25
Size:	13.3 KB
ID:	455298

    An Australian South Sea Mabe pearl.
      Posting comments is disabled.

    Categories

    Collapse

    article_tags

    Collapse

    Latest Articles

    Collapse

    • Sustainable Pearls - Links Section
      by CortezPearls
      This section will have articles to Sustainable Pearl Farming and other related news.

      "The Sustainable Corner" Series is here:

      1. Introduction
      2. Sustaining Life with Pearl Farming
      3....
      08-02-2021, 06:24 PM
    • VI. Common Mabe Pearl Varieties - Abalone Mabe
      by CortezPearls
      C. Abalone Mabe (Genus Haliotis)

      Abalone (or “Ear-shells” as they are sometimes referred) are not pearl oysters at all; they are, instead, an ancient group of marine “snails” known as Archaeogastropoda (Ancient belly-crawlers). Because they are snails, they move about their environment, living on rocks and grazing on brown seaweeds (kelp). Another interesting difference with pearl oysters is that these animals have a temperate water affinity: they prefer cold...
      07-21-2021, 12:23 AM
    • VI. Common Mabe Pearl Varieties - B. Mother-of-Pearl Oysters (genus Pinctada)
      by CortezPearls
      B. Mother-of-Pearl Oysters (genus Pinctada)

      Black Lip Pearl oysters (Pinctada margaritifera)

      Black lip pearl oysters are known mainly for their beautiful, dark, cultured pearls but they have also been used to produce Mabe pearls, although in not great numbers.

      Part of the production strategy for Mabe pearls in French Polynesia and Fiji is at the very last part of the pearl producing cycle:
      Cultured (loose) pearls are produced for up to three cycles (first,...
      07-21-2021, 12:14 AM
    • VI. Common Mabe Pearl Varieties - “Rainbow Lipped Pearl Oyster”
      by CortezPearls
      “Concha Nácar” or “Rainbow Lipped Pearl Oyster”

      This species of pearl oyster (Pteria sterna) has been used to produce both cultured loose pearls and Mabe pearls in Mexico. The first Mabe pearls were obtained back in 1994 and were the main product for the Guaymas based pearl farm until loose cultured pearls became more common (2002). Since 2010, “Cortez Mabe” have been produced in a steady number between 1 to 5-thousand pearls per year. There is an experimental Mabe pearl...
      07-21-2021, 12:06 AM
    • VI. Common Mabe Pearl Varieties - A. Winged Pearl Oysters (genus Pteria)
      by CortezPearls
      There are several varieties of commercially grown Mabe Pearls that can be found at jeweler’s displays or on online vendors, but many have become rare over the years. The three main sources for Mabe pearls today are:
      1. Winged Pearl oysters from genus Pteria, including the “original” Mabe-gai (Pteria penguin) and the “Rainbow-lip” pearl oyster (Pteria sterna).
      2. Mother-of-Pearl oysters from genus Pinctada, mainly from the larger Silver (Pinctada maxima) and Black (Pinctada margaritifera) lipped pearl
      ...
      07-20-2021, 11:59 PM
    • V. Processing Mabe or Natural Blisters
      by CortezPearls
      Since these pearls are not very useable in jewelry with the entire shell, they are processed: first they are cut from the shell, with the help of a handsaw, Dremel tool, core-drill or tile cutting saw. The type of tool will depend on availability and production volume, the first used mainly by occasional processing and the latter for commercial production.

      A lineup of the Mabe pearl process.

      Once the blister is separated from the shell, these are rinsed to remove grime,...
      07-20-2021, 11:44 PM
    Working...
    X