![](http://www.alamy.com/thumbs/6/B9FD3AB8-723F-49A5-94E5-7549556B5D6D/HKA567.jpg)
geology, rock or stone is a naturally occurring solid aggregate of one or more minerals or mineraloids.
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Photo credit: © John Anderson / Alamy / Afripics
License: Royalty Free
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Keywords: aggregate, geology, hard, heap, mineral, , natural, pebbles, rocks, smooth, solid, stone