![](http://www.alamy.com/thumbs/6/2552E74C-FCE6-4E62-ACB8-2083EAA7221D/DTF16H.jpg)
Crystal ball
Crystal balls are produced by grinding and polishing quartz (silicon dyoxide) cystal into spheres.
Size: 4113px × 5194px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ball, crystal, hard, mineral, mystic, polished, quartz, shot, silicate, smooth, specimen, sphere, studio, studioshot, tectosilicate, transparent