1.0JeopardyAnswers.orghttps://jeopardyanswers.orgjeohttps://jeopardyanswers.org/author/jeo/Nacre is another name for this iridescent substance - JeopardyAnswers.orgrich600338<blockquote class="wp-embedded-content" data-secret="XN2KVgPsSB"><a href="https://jeopardyanswers.org/nacre-is-another-name-for-this-iridescent-substance/">Nacre is another name for this iridescent substance</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://jeopardyanswers.org/nacre-is-another-name-for-this-iridescent-substance/embed/#?secret=XN2KVgPsSB" width="600" height="338" title="“Nacre is another name for this iridescent substance” — JeopardyAnswers.org" data-secret="XN2KVgPsSB" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> Below you may find the Nacre is another name for this iridescent substance which is part of the Jeopardy Archive. In case the question or answer is wrong or something is missing do not hesitate to contact us and we will be glad to help you out. This question was last seen on October 22...