The achondrites of this group are named for a Greek philosopher
            of the fifth century B.C., Diogenes of Apollonia. He was the first
            to suggest that meteorites actually have their origin in outer space,
            a fundamental realization that was subsequently forgotten for the
            next two thousand years. T 
            Mineralogically, the diogenites are composed primarily of
            magnesium-rich orthopyroxene, with only minor amounts of olivine and
            plagioclase. The pyroxenes are usually coarse-grained, suggesting a
            cumulate origin for the diogenites in magma chambers within the
            deeper regions of Vesta's crust.  
            Bilanga 
            
            Fell 27 october 1999 in Burkina Faso 
            Diogenite 
            
             
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