The pearl forms around some type of foreign object inside the oyster shell. In cultured pearls, the object is a bead of mother of pearl (pearl shell) placed into the oyster by pearl farmers. Seeing the object as an irritation, the oyster covers the object with layer and layer of a material called nacre. This is essentially the same material making the shiny and lustrous lining of the shell. Pearl nacre is made of aragonite, a type of calcium carbonate. A sort of "pearl glue" holds together microscopic plates of aragonite. As long as the oyster is healthy, the nacre forms and becomes thick over the core, developing the luster and shine we recognize as a pearl.
Why all of that information? There is one reason: aragonite or calcium carbonate. This is the substance of the pearl, the nacre. This material is soft compared to earth formed gemstones. This material is easily damaged by acids, certain chemicals and abrasive substances. The general cleaning methods used for mineral gemstones cannot be safely used to clean the tarnished metal and pearls at the same time. Where a simple gold item may be placed into a mild acid to remove tarnish and buffed to restore shine, that same mild acid will etch the pearl and can actually dissolve it.
This kind of pearl wholesale can fit anyone's lifestyle and personality. You can make every day truly memorable occasion when you shop this convenient online wholesale pearl collection. You can see everything from designer-inspired pearl jewelry to us creations. Each design is unique. You'll find pearl strands, cheap pearl necklace, pearl bracelet, pearl rings, cultured pearl earings, pearl pendant, twisted pearl necklace, 925 sterling silver … and many other designs such as single strand necklace at affordably low prices, I like them very much.
Orignal From: The pearl forms around
没有评论:
发表评论