Fe2o3 or Iron oxide never got a break until artists like Ross Hardy began to display the absolute beauty of rusting colors to their full effect. In his May exhibition at Modern Formations--Black Room/Color Room (4919 Penn Avenue), Hardy displays a cache of work that is representative of the waste left behind by past industry. The powerful coloration of rust in his art is reminiscent of aging steel mills and crumbling coke furnaces. Hardy then photocopies the art several times in a way that allows you to see the intensity of the colors then experience the fading out process. This progression, he says, is indicative of how the old industry has impacted us, but is giving way to new, cleaner technologies. The exhibition's grand opening is GA/GI eve Friday, May 1 at 7 pm and will be up through May 29.