Agate
The agate lies inside an amethyst quartz ground mass this arrangement is exactly the opposite of what is seen in most agates This specimen is owned by Roger Pabian
Size: 4064px × 2704px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: agate, banded, dioxide, mineral, mineralogy, pabian, roger, silicon, specimen