{"product_id":"fulgurite-24g-libyan-desert-egypt-fu032","title":"Fulgurite 2.4g – Libyan Desert, Egypt - FU032","description":"\u003cul\u003e\n\u003cli\u003eLocation: Libyan desert, Egypt\u003c\/li\u003e\n\u003cli\u003eWeight: 2.4g\u003c\/li\u003e\n\u003cli\u003eSize: 3.9 x 1.6 x 1.1 cm\u003c\/li\u003e\n\u003cli\u003eDETAILED DESCRIPTION\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFulgurite – Petrified Lightning\nFulgurite, also known as petrified lightning, is a naturally occurring glassy formation that forms when lightning strikes sand or silica-rich rock. The temperature of the lightning can reach 30,000°C, causing silicatic particles to melt. The molten sand then cools rapidly, creating hollow tubes, channels, or other glassy structures known as fulgurites. They are classified as shock metamorphic rocks.\nAppearance and Properties\nFulgurites can vary in shape and size depending on the strength and duration of the lightning strike. Their color ranges from translucent to pink, brown, or black, depending on the mineral impurities present in the sand. The inner walls of fulgurites are lined with a glassy layer formed by melting, while the outer surface shows traces of partially melted sand grains.\nRarity\nFulgurites are relatively fragile and brittle, making it difficult to collect larger intact specimens, which increases their value.\u003c\/p\u003e","brand":"PeltramMinerals","offers":[{"title":"Default Title","offer_id":58027968430405,"sku":"FU032","price":16.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/1659\/2965\/files\/38780_photoroom-012-20250319-120021.jpg?v=1779378609","url":"https:\/\/moldavite.it\/en\/products\/fulgurite-24g-libyan-desert-egypt-fu032","provider":"Moldavite.it","version":"1.0","type":"link"}