Welcome!  You and your family have just moved into a new home.  As you were cleaning up the dusty attic before stashing your belongings away, you came across a small jewelry box - the only object that had been left behind by previous owners.  You opened the box and inside was an array of jewerly, seemingly made up of different kinds of gemstones.  You contacted the previous owners from whom you purchased the house, and they had no knowledge of the jewelry box or the gems inside.  They had no idea who they could have belonged to.  You decide that the least you can do is find out if the gems in the jewelry are real.  You take the jewelry to a jewler in town to see if she can narrow down a list of possible gemstones.

     From your knowledge of chemistry, you know that if the gemstones are analyzed through spectroscopy, you can identify if the gemstones are valuable and precious by comparing their experimental spectra to the actual spectra, just like a forensic scientist can match fingerprints.  Using the list of gemstones (and less valuable fakes) that the jeweler provided you with and the Raman spectra (Raman is a type of spectroscopy) you received from the spectroscopist at the local university (shown below), determine the identities of the gemstones.  You may compare the experimental spectra to the actual spectra of the gemstones from the following online database:  http://www.dst.unisi.it/geofluids/raman/spectrum_frame.htm under the "Classification" of "Gems."


Jeweler's List:  malachite, diamond, topaz, emerald, ruby, chalcopyrite, turquoise, sapphire, garnet, topaz, quartz


Raman Spectra of your Gemstones: