| It is a good article! A really good article full of facts. It's broad, readable and interesting, especially his valuation of natural pearls during the 20th century and that he even included that.
My only reservation is he did the grain of sand thing as a cause of pearl formation. He left the impression pearls always form around a worm or parasite. They can do so, but any injury to the mantle that carrys some epethelial nacre-forming cells to the inside of the mantle, can cause a pearl to form. A hungry critter trying to take a bite of a pinctada can start a pearl.
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Caitlin
Following the pearl. What a ride!
If it is "Gemologist", shouldn't it also be "Pearlologist"?
Avatar is a Sea of Cortez mabe pearl earring-
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