Phosgenite    Bage Mine, Cromford, Derbyshire, England.  Ex. Dr. Steve Chamberlain collection, prev. George and Marion Springs.  This fantastic little crystal is a floater measuring 1.6 x .6 x .5 cm overall.  It is tan in color with no damage and excellent form.  It is a relatively rare tetragonal carbonate that I have usually seen from Italy.  This one is a classic and unlikely to be found for sale anywhere else.  A desirable piece for its quality, location, and species rarity.  $650