![](http://www.alamy.com/thumbs/6/FD9CD3DD-6542-43BC-A8D9-7948442963C2/J866XD.jpg)
rock gravel quarry basalt heap stones rock gravel quarry basalt geology heap
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Photo credit: © DieterM / Alamy / Afripics
License: Royalty Free
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Keywords: basalt, basaltabbau, basaltprismen, basaltsteinbruch, erdgeschichte, ergussgestein, eruptivgestein, geology, gravel, heap, mineral, quarry, rock, stones, straenbau, sulenbasalt, vulkanit