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<p>[QUOTE=&quot;Bronwen, post: 12746709, member: 5833&quot;]If the back were exposed to examination, we would have more clues about the material.</p><p><br /></p><p>This is my attempt to help in the differentiation of conch shell from coral:</p><p><br /></p><p><a href="https://cameotimes.com/index.php/reference/materials-guide?start=1" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://cameotimes.com/index.php/reference/materials-guide?start=1" rel="nofollow">https://cameotimes.com/index.php/reference/materials-guide?start=1</a></p><p><br /></p><p>Taken from the article:</p><p><br /></p><p><i>On the cheek and neck, this piece also exhibits the faint striations not infrequently seen on conch cameos.&nbsp; While having the appearance of fine cracks or scratches that have become discolored, a fingernail will not catch in them and no amount of cleaning diminishes their appearance.&nbsp; Running nearly straight and in parallel, they probably mark growth increments and so are further evidence that the material is molusk-produced rather than coral.</i>[/QUOTE]</p><p><br /></p>

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