Web Results

en.wikipedia.org/wiki/Pearl

A pearl is a hard object produced within the soft tissue (specifically the mantle) of a living .... Natural pearls come in many shapes, with perfectly round ones being ... Although imitation pearls look the part, they do not have the same weight or ...

www.livescience.com/32289-how-do-oysters-make-pearls.html

Nov 20, 2012 ... An oyster forms pearls by secreting a mineral substance called nacre and uses it to quarantine an irritant.

www.ask.com/youtube?q=Where+Do+Pearls+Come+from&v=T18E58vOTus
Jan 3, 2012 ... Pearls are formed in Clams, Oysters and Mussels, and are found in many p... ... How did I get here from watching a pearl AMV???. Read more.
www.ask.com/youtube?q=Where+Do+Pearls+Come+from&v=tIOSWAbUf74
Aug 5, 2014 ... That explains where pearls come from, but WHY do they form? I'd think that surrounding a little irritant with layer upon layer until it's a huge ball ...

www.purepearls.com/pearl-origins.html

Find out about the history and origins of Japanese Akoya pearls, South Sea pearls, Freshwater pearls and Tahitian pearls.

animals.howstuffworks.com/marine-life/question630.htm

How do oysters make pearls, and what is the difference between natural and cultured ... This ligament is positioned where the valves come together, and usually ...

wonderopolis.org/wonder/does-every-oyster-have-a-pearl

Do you know where pearls come from? They don't grow on trees. You can't plant them. They aren't mined out of the ground either. So where do pearls come ...

pearls.com/pages/how-pearls-are-formed

Pearls can come from either salt or freshwater sources. Historically, saltwater pearls were rounder and had a better nacre than freshwater pearls, while ...

www.wixonjewelers.com/education/pearls/how-pearls-are-formed

Live oysters below the surface of the sea grow pearls. Gemstones must be cut and polished to bring out their beauty, but pearls need no such treatment to reveal ...