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Unformatted text preview: pearls has always been the Arabian Gulf. The Arabian Gulf (formerly referred to as the Persian Gulf) furnished about 80% of the world production of natural pearls. Annual catch for the Gulf was estimated to be around 35,000 tons of the oyster, Pinctada radiata. Thriving from historic times until the 1930s, the fishery of the gulf declined steadily from 1930 onwards due to: – 1) world recession, – 2) the introduction of cultured pearls – 3) finally the development of oil production in the 1940s that siphoned off the labor force
ANS 18 ANS 14 Formation of natural pearls
“irritant” probably of biological origin, i.e. a worm parasite, rather than a grain of sand • 1933 - Mikimoto burns 750,000 inferior pearls. • 1942 - Production of luxury goods, including pearls, stopped during WWII
ANS 18 ANS 15 National Jewel Policy – Japan 1953 • pearl cultivating techniques shall remain
secret to all but the Japanese. • production objectives shall be controlled and regulated to safeguard the home pearl production • all pearl productio...
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- Spring '11