Ruby and Sapphire
Specimens of the mineral corundum (Aluminum Oxide), a ruby and saphire. These gemstones are varieties of the corundum mineral. A collection of crystals including the Edwardes ruby
Picture No
10711991
Media ID
47592606
Size
3195px x 3922px
(8.7MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
