Orbicular Granite, a rare occurrence formed by slow cooling magma crystallizing around nuclei

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Photo credit: © Roger Cope / Alamy / Afripics
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Keywords: attractive, beige, black, brown, circles, cooling, crystal, crystallise, crystallize, eggs, formation, geology, granite, igneous, intrusions, magma, nodules, nuclei, orbicular, ovals, pattern, pink, polished, rare, rock, slow, unusual, volcano