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THE  CORUNDUMINIUM

     
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SOUTHWESTERN  U. S.

 
     
          The state of California is home to one of my favorite sub-gem corundum localities, often referred to as "Mount San Jacinto".  The strange elongated crystals are usually found in sections, even when encased in host rock (see second thumbnail below).  Two Californian brothers, Ken and Dana Gochenour, searched out the source and harvested a couple of dozen outstanding specimens.  They are also responsible or the extensive and striking preparations.  
     
 

 
         "The Whale", pictured in the left thumbnail above, is considered to be the finest from the locality.  The main crystal is about 7-1/2" long.  The Gochenours' longest is about 9" (center thumbnail), and it is currently on display at Montana Tech in Butte (where it will remain until July, 2009).  The last two thumbnails show one with a flattened hexagonal cross section, and another twinned crystal.  We have ten "Gokes" in the collection, and they form an interesting group (below).  
 

 
    The same general locality has produced produced interesting specimens for at least fifty years, including sections of crystals that may have been about 24" long.   
     
   There is another California locality that produces small, intensely fluorescent rubies...