Commonly Known As Quicksilver Mercury Is The Only Metallic Element That Is A Liquid At Room Temperature. Itas A Heavy Silver-Colored Metal That Has Been Historically Used For Temperature Gauges And Electrical Applications Because Of Its Conductive Properties. Just Like Its Namesake Quicksilver Thinking Putty Is A Saturated Silver Color With Dark Streaks Throughout. Use The Included Magnet To Discover The Unique Properties Of This Putty For Yourself.