1.0Dutch Museum Gift Shophttps://dutchmuseumgiftshop.nl/fr/rich600338<blockquote class="wp-embedded-content" data-secret="3ydlKAdm0r"><a href="https://dutchmuseumgiftshop.nl/fr/store/naturalis/product/calcite-blue/">Blue Calcite</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://dutchmuseumgiftshop.nl/fr/store/naturalis/product/calcite-blue/embed/#?secret=3ydlKAdm0r" width="600" height="338" title="« Blue Calcite » — Dutch Museum Gift Shop" data-secret="3ydlKAdm0r" 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); //# sourceURL=https://dutchmuseumgiftshop.nl/wp-includes/js/wp-embed.min.js </script> Calcite occurs in many different colors, such as red, green, blue, yellow, brown, orange, white and even colorless. The crystals belong to the trigonal system and occur in many different forms. Calcite is a very common mineral and is also found as a part of limestone and even marble.https://dutchmuseumgiftshop.nl/wp-content/uploads/2022/10/NaturalisIMG_8919-scaled.jpg25602560