Wednesday, June 24, 2009

June Gemstone - Pearl


June colour is white
so the white pearl is a very nice "gemstone" for people born in June

The scientific explanation for natural pearls is almost as mystifying as folklore. When an irritant, such as a small parasite or a fish lodges in the flesh of an oyster, mussel, or clam, a protective substance called "nacre" is produced. Over years, layer upon layer of shimmering nacre coats the intruder, creating a lustrous pearl. Natural pearls are relatively rare, so a process evolved in which a piece of shell or bead was placed inside a mollusk to stimulate the production of nacre.

This results in a cultured pearl, which accounts for about 90 per cent of the pearl industry.

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