Corundum variety ruby; crystal and gems
Crystal and gem specimens of ruby, the red variety of the mineral corundum (aluminium oxide). Corundum has two varieties, the other being sapphire. Sapphire can be found in a number of different colours
Picture No
10704041
Media ID
47557056
Size
3425px x 2744px
(5.8MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
