Three forms of uranium concentrate

P25733 OAK RIDGE, TENNESSEE Three forms of uranium concentrate. The yellow uranium oxide looks like pollen and the brown oxide resembles instant coffee. The beautiful shade of aquamarine is uranium tetrafluoride. Southern Post Card Co., 650 Wade Circle, Goodlettsville, Tenn. Plastichrome by COLOURPICTURE PUBUSHERS, INC., Boston Mass., U.S.A.