![](http://www.alamy.com/thumbs/6/25DAF298-9304-4C6D-9F17-6E5638DE0101/DTFD6H.jpg)
Agate
A pestle and mortar made of agate.
Size: 2835px × 2551px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: agate, background, chalcedony, crystalline, dioxide, geological, geology, mineral, mineralogy, quartz, shot, silicate, silicon, specimen, studio, studioshot, tectosilicate, white