Saturday, November 26, 2011

A Pearl is Made up of Calcium Carbonate ....

A pearl is a hard object produced within the soft tissue (specifically the mantle) of a living shelled mollusk. Just like the shell of a mollusk, a pearl is made up of calcium carbonate in minute crystalline form, which has been deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes of pearls (baroque pearls) occur. The finest quality natural pearls have been highly valued as gemstones and objects of beauty for many centuries, and because of this, the word pearl has become a metaphor for something very rare, fine, admirable, and valuable.


Here is an example of one being used as a necklace:


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8 comments:

  1. Brock TownsendNovember 26, 2011 at 8:20 PM

    I've always liked pearls.......

    ReplyDelete
  2. Rich TNovember 26, 2011 at 8:28 PM

    Pearls...I like both of them.

    ReplyDelete
  3. Brock TownsendNovember 26, 2011 at 9:21 PM

    Pearls...I like both of them.

    I thought there were three, I guess I need new glasses......

    ReplyDelete
  4. Glenn BNovember 26, 2011 at 9:33 PM

    There was a pearl in that picture, you gotta be kidding me!

    ReplyDelete
  5. DaddyBearNovember 26, 2011 at 9:47 PM

    Somewhere in this picture is a necklace. See if you can find it!

    ReplyDelete
  6. Johnnyreb™November 26, 2011 at 10:19 PM

    Oh ... that pearl

    ReplyDelete
  7. bigredkevNovember 27, 2011 at 3:37 PM

    I can only see 2 rubies!!!

    ReplyDelete
  8. NorthNovember 28, 2011 at 1:25 PM

    I want to thank her for pointing things out.

    ReplyDelete

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