{"product_id":"banded-carnelian-15-00","title":"Banded Carnelian $15.00","description":"\u003cp data-start=\"33\" data-end=\"390\"\u003eCarnelian is a variety of chalcedony, a microcrystalline form of quartz (SiO₂), prized for its rich red to orange hues caused by trace amounts of iron oxide. This specimen features natural banding, with alternating layers of carnelian and lighter chalcedony, formed over thousands of years as silica-rich fluids deposited in cavities within volcanic rock.\u003c\/p\u003e\n\u003cp data-start=\"392\" data-end=\"414\"\u003eWhy You’ll Love This\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"417\" data-end=\"535\"\u003eComposition and Structure: Made of interlocking quartz crystals, durable and slightly translucent when held to light\u003c\/li\u003e\n\u003cli data-start=\"538\" data-end=\"646\"\u003eColoration: Deep orange to reddish tones with natural banding created by varying iron oxide concentrations\u003c\/li\u003e\n\u003cli data-start=\"649\" data-end=\"768\"\u003eFormation: Develops in volcanic cavities through slow deposition of silica and alteration by mineral-rich groundwater\u003c\/li\u003e\n\u003cli data-start=\"771\" data-end=\"897\"\u003eScientific Interest: Demonstrates mineral layering, chemical weathering, and the role of trace elements in coloring minerals\u003c\/li\u003e\n\u003cli data-start=\"900\" data-end=\"974\"\u003eEducational Value: Ideal for teaching, collecting, or scientific display\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"976\" data-end=\"1084\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eA visually striking specimen that highlights natural geologic processes and the beauty of mineral formation.\u003c\/p\u003e","brand":"The Science Museum of Minnesota","offers":[{"title":"Default Title","offer_id":47750023184598,"sku":"R1500","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/2491\/1830\/files\/carnelian-1.jpg?v=1769021910","url":"https:\/\/threecrows.com.co\/fr\/products\/banded-carnelian-15-00","provider":"ThreeCrowsLLP","version":"1.0","type":"link"}