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About the shell pearl！
last night I saw a artilce about the shell pearl...It related the detail of the shell...first it tell me..what are the shell pearl...then tell me How are Shell Pearls Made...I know many things from this article..
eg: I know what are the shell pearls?
The shell pearl is laboratory made from the shell of an oyster. The process of making a shell pearl involves several different stages. The raw material for the base of the pearl is the sea shell, which is coated and polished to the final shape of the pearl. In order to produce a good quality pearl, a key ingredient is what we call a 'mother of pearl bead'. This element adds weight, value and durability to the pearl. In fact, the materials used in order to make shell pearls are the same materials from which cultured pearls are made.
eg: I know how are the shell pearls made?
1.First proper shells are collected from special shell beds. These are located at the red dots in this map of Vietnam where many shell pearls are made.
2.Shell pearls raw material is first cut into strips.
3.Rounding shell pearls mechanically.
4.Shaping shell pearls manually--watch those fingers!
5. First quality control for shell pearls.
6.Drilling shell pearls--one by one.
7.A second shell pearls quality control
8.Stringing shell pearls.
9.Framing shell pearls.
10.Protecting shell pearls.
11.Dyeing shell pearls--many colors available.
12.Baking shell pearls.
13.Polishing shell pearls
14.Final stringing for shell pearls.
15.Measuring shell pearls.
16.Final quality control for shell pearls
17.Packing shell pearls.
I think this article is very well...it include the pic and the explain of the letter...iT let me study many things...
shell pearl
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Photo:
http://www.prlog.org/
