By now, I believe i've become "okay" at writing guides. I'd like to share my experience with everyone who is thinking about purchasing pearls on ebay or another local store. At a tourist attraction in China, our tour group went to a factory that specialized in jewelery, but especially pearls. The factory had us sit down and listen to a presentation on pearls. Anyways, enough with my life's story, here are the tip you want to look out for when spotting a fake pearl:

• Rub a pearl against a mirror it should leave a white residue (it does not matter what color the pearl is). The residue is like a white powder. Sometimes the pearl will scratch the mirror, so if you ruin your favorite mirror, please don't blame me.
• Rub the pearl across your teeth (maybe not the best way to spot a fake, but simple). If it’s a real pearl it will feel rough, a fake pearl will feel smooth and silky after it is rubbed against your teeth.
• Another way is to rub two pearls together. Fake pearls will feel smooth when rubbed against each other. Real pearls seem to creat friction and are rough when rubbed against each other, they may also get scratched (scratches will be removed when rubbing over them).
• Pearls do not melt, if you set a real pearl near a flame, it will not melt. The real pearl may have some flame marks but they should be easy to remove with a cloth, just wipe it clean.
  

I hope you found my guide helpful. If it's not too much trouble click the "yes" button under this guide. If you have any comments or questions, feel free to message me.