DC -- Natl Museum of Natural History -- Exhibit: Geology, Gems, and Minerals:
[1] SINHGE_120427_06.JPG
[2] SINHGE_120427_21.JPG
[3] SINHGE_120427_27.JPG
[4] SINHGE_120427_29.JPG
[5] SINHGE_120427_31.JPG
[6] SINHGE_120427_47.JPG
[7] SINHGE_121218_05.JPG
[8] SINHGE_121218_14.JPG
[9] SINHGE_121218_19.JPG
[10] SINHGE_121218_22.JPG
[11] SINHGE_121218_37.JPG
[12] SINHGE_121218_51.JPG