Diamond crystals
Clockwise from top left (yellow matrix): in beach conglomerate from Namaqualand, in kimberlite from South Africa and in matrix from Siberia (bottom). Diamond is the hardest natural substance known on Earth
Picture No
10703699
Media ID
47586095
Size
1826px x 1468px
(2.4MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
