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<p>fully aromatic although <a href="page.php?w=superaromaticity">superaromaticity</a> would still be possible when these sextets are able to migrate into next ring.</p>

<p><big>Occurrence and synthesis</big></p>
<p>Coronene occurs naturally as the very rare <a href="page.php?w=mineral">mineral</a> <a href="page.php?w=carpathite">carpathite</a>,  characterized by flakes of pure coronene embedded in sedimentary rock. This mineral may be created from ancient hydrothermal vent activity.  In earlier times this mineral was also called karpatite or pendletonite.</p><p>
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