{"product_id":"uranium-glass-dagger-beads-5x16-mm-yellow-czech-uv-glowing-reactive-vaseline-glass-10-pcs-for-jewelry-making-diy-crafts-supplies","title":"Uranium Glass (Dagger Beads 5x16 mm) Yellow Czech | UV Glowing Reactive Vaseline Glass | 10 pcs for Jewelry Making, DIY Crafts \u0026 Supplies","description":"Add a rare and eye-catching element to your designs with these Uranium Glass Czech Dagger Beads (5x16 mm) in 80130 transparent yellow color. Made in the Czech Republic, these beautiful glass beads are crafted from authentic uranium (vaseline) glass, known for its distinctive glow under UV light.\n\nUnder blacklight, these beads fluoresce with an intense neon green glow, creating a magical effect that instantly elevates any jewelry or craft project.\n\n✨ What Is Uranium Glass (Vaseline Glass)?\nUranium glass is a type of glass that contains a small amount of uranium oxide added during the melting process. This addition gives the glass its characteristic yellow to yellow-green tint and its famous UV reactive fluorescence.\n\nThe term “Vaseline glass” became popular in the late 19th and early 20th century because the translucent yellow color resembled petroleum jelly. When exposed to ultraviolet light, the uranium content causes the glass to glow bright green — a phenomenon highly valued by collectors and designers.\n\n🏺 The History of Uranium Glass\nUranium glass dates back to the early 1800s, with documented production beginning in Europe. It became especially popular during the Victorian era and later during the Art Deco period.\n\nThe Czech Republic (historically Bohemia) became one of the world’s most important centers of decorative glass production, including uranium glass. Czech glassmakers are internationally recognized for their craftsmanship, precision cutting, and consistent quality — a tradition that continues today.\n\nAlthough uranium glass contains uranium, the amount used is very small and considered safe for handling and jewelry use.\n\n🔥 How Uranium Glass Beads Are Made\n- Raw Materials Preparation – Silica sand is mixed with fluxing agents and a carefully measured amount of uranium oxide.\n- High-Temperature Melting – The mixture is melted in a furnace at extremely high temperatures until fully liquified.\n- Color Formation – The uranium oxide integrates into the molten glass, creating the signature transparent yellow tone.\n- Shaping \u0026amp; Pressing – The molten glass is shaped into the classic dagger bead form (5x16 mm) using precision molds.\n- Cooling \u0026amp; Finishing – Beads are slowly cooled to ensure durability and clarity, then inspected for quality.\n\nThe result is a smooth, luminous bead with a brilliant UV reactive glow.\n\n💎 Product Details\nType: Czech Dagger Beads\nSize: 5 x 16 mm\nColor: Transparent Yellow\nMaterial: Uranium (Vaseline) Glass\nUV Reactive: Yes – bright green glow under blacklight\nOrigin: Czech Republic\nQuantity: 10 pieces\n\n🌙 Perfect For\n✔ Handmade jewelry (necklaces, earrings, bracelets)\n✔ Gothic \u0026amp; alternative designs\n✔ UV \/ festival jewelry\n✔ Collectors of uranium glass\n✔ Unique artisan craft projects\n✔ Statement beading designs\n\nThese beads are ideal for designers who want something unusual, historical, and visually striking.\n\n⚡ Why Designers \u0026amp; Collectors Love Uranium Glass\n- Rare and conversation-starting material\n- Authentic historic glassmaking tradition\n- Stunning fluorescence under UV light\n- Unique color depth and clarity\n- Made in the Czech Republic — world-renowned glass heritage\n\n🔦 Please note: The fluorescent effect is visible only under UV (black) light.","brand":"URANIUMGLASSGLOW","offers":[{"title":"5x16mm (10pcs)","offer_id":58457442091382,"sku":null,"price":4.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/4317\/9382\/files\/e3cea0fb-il_fullxfull.7783006669_ldg9.jpg?v=1786710927","url":"https:\/\/uraniumglassglow.com\/products\/uranium-glass-dagger-beads-5x16-mm-yellow-czech-uv-glowing-reactive-vaseline-glass-10-pcs-for-jewelry-making-diy-crafts-supplies","provider":"URANIUMGLASSGLOW","version":"1.0","type":"link"}