Pumice-B

=//Pumice-B //=
 * 1) Pumice is a type of volcanic rock.
 * 2) Pumice is produced when lava with a very high content of water and gases is thrown out of a volcano.
 * 3) It contains useful properties only when its young and unalterd.
 * 4) Pumice is used sometimes for natural skin care
 * 5) Pumice is a igneous rock.
 * 6) Pumice is extrusive.
 * 7) Used for concrete
 * 8) Floats on water
 * 9) When more gas is present, there is a finer-grained type of pumice called pumicite.
 * 10) The name pumice comes from the latin word pumex which means foam.
 * 11) Pumice has a low density
 * 12) [[image:pumice-3.jpg width="173" height="160"]]
 * 13) [[image:pumice.jpg width="196" height="165"]]
 * 14) [[image:pumice-2.jpg width="231" height="242"]]
 * 15) [[image:pumice-1.jpg width="176" height="160"]]
 * 16) [[image:pumice_rock.jpg width="123" height="112"]]

sources http://en.wikipedia.org/wiki/Pumice, http://www.mii.org/Minerals/photopumice.html, http://www.fi.edu/fellows/fellow1/oct98/expert/pumice.htm, http://www.reade.com/index.php?option=com_content&task=view&id=655&Itemid=10, http://www.eoearth.org/article/Pumice, http://www.encyclopedia.com/topic/pumice.aspx#2

BY:JERRY DUNMIRE, AND DEVIN KOOKER