{"id":9917,"date":"2026-06-05T22:36:38","date_gmt":"2026-06-05T20:36:38","guid":{"rendered":"https:\/\/www.e-gems.cz\/?post_type=product&#038;p=9917"},"modified":"2026-06-05T22:36:47","modified_gmt":"2026-06-05T20:36:47","slug":"libyjske-sklo-3-76-ct","status":"publish","type":"product","link":"https:\/\/www.e-gems.cz\/en\/produkt\/libyjske-sklo-3-76-ct\/","title":{"rendered":"Libyjsk\u00e9 sklo 3.76 ct"},"content":{"rendered":"<p><strong>Libyjsk\u00e9 sklo<\/strong> je vz\u00e1cn\u00fd druh p\u0159\u00edrodn\u00edho skla, kter\u00fd se nach\u00e1z\u00ed v oblasti saharsk\u00e9 pou\u0161t\u011b na pomez\u00ed Egypta a Libye. M\u00e1 charakteristickou sv\u011btle \u017elutou a\u017e zlatavou barvu a vzniklo p\u0159ibli\u017en\u011b p\u0159ed 29 miliony let. Je tvo\u0159eno p\u0159ev\u00e1\u017en\u011b oxidem k\u0159emi\u010dit\u00fdm, d\u00edky \u010demu\u017e pat\u0159\u00ed mezi nej\u010dist\u0161\u00ed p\u0159\u00edrodn\u00ed skla na sv\u011bt\u011b.<\/p>\n<p>V\u011bdci se domn\u00edvaj\u00ed, \u017ee libyjsk\u00e9 sklo vzniklo p\u0159i dopadu meteoritu nebo p\u0159i velmi siln\u00e9 explozi kosmick\u00e9ho t\u011blesa v zemsk\u00e9 atmosf\u00e9\u0159e. P\u0159i t\u00e9to ud\u00e1losti se p\u00edsek v pou\u0161ti zah\u0159\u00e1l na extr\u00e9mn\u011b vysokou teplotu, roztavil se a po rychl\u00e9m ochlazen\u00ed vytvo\u0159il sklovitou hmotu. Dodnes prob\u00edh\u00e1 v\u00fdzkum, kter\u00fd m\u00e1 p\u0159esn\u011b objasnit mechanismus jeho vzniku.<\/p>\n<p>Libyjsk\u00e9 sklo bylo zn\u00e1m\u00e9 ji\u017e ve starov\u011bk\u00e9m Egypt\u011b. Nejslavn\u011bj\u0161\u00edm p\u0159\u00edkladem jeho vyu\u017eit\u00ed je skarabeus vy\u0159ezan\u00fd z tohoto materi\u00e1lu, kter\u00fd zdobil n\u00e1prsn\u00ed pektor\u00e1l faraona Tutanchamon. Tento n\u00e1lez dokazuje, \u017ee starov\u011bc\u00ed Egyp\u0165an\u00e9 pova\u017eovali libyjsk\u00e9 sklo za cenn\u00fd a v\u00fdjime\u010dn\u00fd materi\u00e1l.<\/p>\n<p>Nab\u00edzen\u00fd kus v sob\u011b obsahuje b\u00edl\u00e9 dob\u0159e viditeln\u00e9 chom\u00e1\u010dky miner\u00e1lu cristobalitu (vysokoteplotn\u00ed forma oxidu k\u0159emi\u010dit\u00e9ho SiO\u2082). Rozm\u011br nab\u00edzen\u00e9ho kusu je 11,80 x 9,70 mm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Libyjsk\u00e9 sklo je vz\u00e1cn\u00fd druh p\u0159\u00edrodn\u00edho skla, kter\u00fd se nach\u00e1z\u00ed v oblasti saharsk\u00e9 pou\u0161t\u011b na pomez\u00ed Egypta a Libye. M\u00e1 charakteristickou sv\u011btle \u017elutou a\u017e zlatavou barvu a vzniklo p\u0159ibli\u017en\u011b p\u0159ed 29 miliony let. Je tvo\u0159eno p\u0159ev\u00e1\u017en\u011b oxidem k\u0159emi\u010dit\u00fdm, d\u00edky \u010demu\u017e pat\u0159\u00ed mezi nej\u010dist\u0161\u00ed p\u0159\u00edrodn\u00ed skla na sv\u011bt\u011b. V\u011bdci se domn\u00edvaj\u00ed, \u017ee libyjsk\u00e9 sklo vzniklo p\u0159i [&hellip;]<\/p>\n","protected":false},"featured_media":9918,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[208],"product_tag":[],"class_list":["post-9917","product","type-product","status-publish","has-post-thumbnail","product_cat-libyjske-sklo","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product\/9917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/media\/9918"}],"wp:attachment":[{"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/media?parent=9917"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product_brand?post=9917"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product_cat?post=9917"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.e-gems.cz\/en\/wp-json\/wp\/v2\/product_tag?post=9917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}