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The world is getting warmer. What will climate change mean for the cultured pearl industry?
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The world is getting warmer. What will climate change mean
for the cultured pearl industry?
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In February, the
United Nations Intergovernmental Panel on Climate Change released a report
that confirmed what most people intimately connected with the environment
already knew — the planet is getting warmer, and its oceans are changing as a
result.
In March, the pearl industry responded by drawing up a resolution during the
annual
World Jewellery Confederation (CIBJO) conference supporting the Kyoto
Protocol. The Kyoto Protocol is thus far the world’s most important treaty
addressing global warming; its goal is to reduce the carbon emissions thought to
be contributing to the warming trend.
Korea
Tongyeong Land of Sea and Pearls
Tongyeong is also the place where the Korean
pearl cultivating industry was born. It is difficult to believe now that this
industry, which is very well developed in Korea, began less than a half century
ago in 1961. But even until the beginning of 1990s, this industry was
dependent on Japan. Korea was not able to create their own seed oysters
the oysters inside which pearls grow and imported them from Japan.
more
Cave Pearls
Pearls are a concentric concretion found in shallow cave pools. They can
be spherical, as in these photos, or cylindrical, elliptical, and even
cubical (as in the additional photos in the table below. They range in
size from barely larger than a sand grain up to golf-ball sized. In the
tropics, large beds of them may be found. Grutas de Canicas, a cave
recently explored in Mexico, contained pearls estimated in the millions.
Cave pearls form when water dripping into the pool loses carbon dioxide
and precipitates calcite. This precipitate usually forms around a
nucleus of sand, bones, or fragments of soda straws or rafts. The
typical roundness is due to the uniform growth of the pearl, not to any
sort of rotation due to dripping. A sphere allows the greatest amount of
deposition for the smallest surface area and is thus most likely, even
if the nucleus is highly irregular. The dripping causes vibrations in
the pool which may prevent the pearls from cementing (with calcite) to
the pool floor, though many pearls are found cemented in. Sometimes
excess precipitate will form cups or nests around the pearls, like in
the photo on the top.
Past Pearl Education Articles Unusual Pearls Pearl Farming around The World
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