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Pinctada fucata, the Akoya pearl oyster (阿古屋貝), is a species of marine bivalve mollusk in the family Pteriidae, the pearl oysters. Some authorities classify this oyster as Pinctada fucata martensii (Gould, 1850). [1] It is native to shallow waters in the Indo-Pacific region and is used in the culture of pearls.
Pinctada is a genus of saltwater oysters, marine bivalve mollusks in the family Pteriidae. These pearl oysters have a strong inner shell layer composed of nacre, also known as "mother of pearl". Pearl oysters are not closely related to either the edible oysters of family Ostreidae or the freshwater pearl mussels of the families Unionidae and ...
The term keshi (occasionally misspelled Keishi, apparently a confusion with "Heishi beads") was first used in Japan to refer to pearls without nuclei. Akoya pearl cultivation, which began in the 1920s in Japan, provided numerous small, most often greyish pearls as a by-product. Traders from India, where natural pearls were harvested and ...
The cultured pearls on the market today can be divided into two categories. The first category covers the beaded cultured pearls, including Akoya, South Sea, Tahiti, and the large, modern freshwater pearl, the Edison pearl. These pearls are gonad-grown, and usually one pearl is grown at a time. This limits the number of pearls at a harvest period.
The original Japanese cultured pearls, known as akoya pearls, are produced by a species of small pearl oyster, Pinctada fucata martensii, which is no bigger than 6 to 8 cm (2.4 to 3.1 in) in size, hence akoya pearls larger than 10 mm in diameter are extremely rare and highly priced. Today, a hybrid mollusk is used in both Japan and China in the ...
Akoya Sogi, Japanese voice actress; Other. Akoya condominiums, is a 47-story, high-rise residential condominium located in Miami Beach; Akoya, a genus of sea snails; Akoya akoya (Calliostoma akoya), a species of sea snail; Akoya pearl oyster (Pinctada fucata), a species of pearl oyster; LISA Akoya, a single engine light aircraft
Here's what to look for: It's a gas, gas, gas. A replica of Shea’s Gas Station and a neon sign touting A. Lincoln Motel, both part of Springfield's past on Route 66, will be at the front of the ...
This mussel produced a high volume of low-quality pearls that came to be known as "raisin pearls" in the 1970s and 1980s. More than a decade ago the freshwater pearl industry of China shifted production from the cockscomb pearl mussel to the triangle shell mussel (Hyriopsis cumingii). The triangle shell produced fewer pearls, accepting only 12 ...
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