{"product_id":"breccia-brecciated-rhyolite-associated-with-gold-mineralization-hand-display-specimen","title":"breccia - brecciated rhyolite associated with gold mineralization - hand\/display specimen","description":"\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: #ab0808;\"\u003e\u003cstrong\u003eTextbook hand\/display specimen of breccia in rhyolite from the Monte Cristo Range in Nevada. Initially a light tan, this rhyolite was brecciated by faulting and then hydrothermally altered, with the mineralizing fluids rising through fractures in the breccia and permeating the rhyolite.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e\u003cspan style=\"color: #a30404;\" data-mce-style=\"color: #a30404;\"\u003e\u003cb data-mce-fragment=\"1\"\u003eThis breccia was associated with gold mineralization, and was exposed during development of the Boss Mine, which recovered gold by heap leaching cyanidation. Specimens like these are uncommon and spectacular. \u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e\u003cspan style=\"color: #a30404;\" data-mce-style=\"color: #a30404;\"\u003e\u003cb data-mce-fragment=\"1\"\u003eA \u003ci data-mce-fragment=\"1\"\u003ebreccia\u003c\/i\u003e, from the Italian for broken, is a rock composed of angular broken fragments that have later been cemented. The fracturing is usually a result of faulting, though there are some mega-breccias  that are the result of the downslope sliding of whole mountain ranges during Cenozoic extension of the Basin and Range province.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"color: #ff2a00;\" class=\"s1\" data-mce-style=\"color: #ff2a00;\"\u003e\u003cb\u003eMaking multiple purchases?\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e Click on the \"combine shipping\" button in the shopping cart. We'll send an invoice with combined shipping. A link in that invoice will bring you back to checkout, no hassle.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"color: #ff2a00;\" class=\"s1\"\u003e\u003cb\u003eShipping:\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e By Priority Mail or USPS Ground Advantage, whichever is cheaper. Click \u0026gt; \u003c\/b\u003e\u003ca href=\"https:\/\/geologicalspecimensupply.com\/pages\/about-shipping\"\u003e\u003cspan style=\"color: #2b00ff;\" class=\"s2\"\u003e\u003cb\u003ehere\u003c\/b\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cb\u003e \u0026lt; for shipping rates. See comment at \u003c\/b\u003e\u003cspan style=\"color: #ff2a00;\" class=\"s1\"\u003e\u003cb\u003eNote!\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e Use back button to return to this page.\u003c\/b\u003e\u003c\/p\u003e","brand":"Geological Specimen Supply","offers":[{"title":"Default Title","offer_id":40253172777047,"sku":null,"price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/7650\/files\/brecciaBossMineLgH_D12.5_4f75d307-c000-4536-b7d7-ab9af91c941a.jpg?v=1785059856","url":"https:\/\/geologicalspecimensupply.com\/products\/breccia-brecciated-rhyolite-associated-with-gold-mineralization-hand-display-specimen","provider":"Geological Specimen Supply","version":"1.0","type":"link"}