description: <p style="text-align: justify;">LOCALITY: Huang Gang Mine, Inner Mongolia Autonomous Region, China <br /><br />2 7/8 across <br /><br />The fluorite octahedron is so transparent and pristine on its edges, vertices and faces that it resembles a faceted jewel. It is placed on a matrix of contrasting silvery lustered lollingite. It is an extremely esthetic specimen and looks much nicer "in person". <br /><br />The idealized chemical composition of lollingite is iron arsenide. I only know of this species from Huang Gang and Broken Hill, New South Wales, Australia. Since lollingite occurs with arsenopyrite and looks similar to arsenopyrite, it is easily confuse these two species. It may be that lollingite is a relatively common mineral species despite being not well known or understood by most collectors of esthetic mineral specimens. <br />  <br />This piece was traded from Andy Seibel via the mail in 2012 or 2013.   <br />  <br />Photo  by Matthew Webb of Melbourne, Victoria, Australia</p>

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