{"product_id":"banded-agate-skull-69-99","title":"Carved Banded Agate Skull","description":"\u003cp data-start=\"26\" data-end=\"295\"\u003eThis skull is carved from banded agate, a variety of chalcedony known for its layered bands of color. The alternating light and dark layers form as silica is deposited in rhythmic patterns within cavities of volcanic rock, resulting in unique striping in every piece.\u003c\/p\u003e\n\u003cp data-start=\"297\" data-end=\"319\"\u003eWhy You’ll Love This\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"322\" data-end=\"365\"\u003eMaterial: Banded agate (chalcedony, SiO₂)\u003c\/li\u003e\n\u003cli data-start=\"368\" data-end=\"402\"\u003eSize: Approximately 2 × 3 inches\u003c\/li\u003e\n\u003cli data-start=\"405\" data-end=\"518\"\u003eAppearance: Polished skull with parallel or curved bands in tones from white and gray to deep browns and blacks\u003c\/li\u003e\n\u003cli data-start=\"521\" data-end=\"628\"\u003eFormation: Develops as silica-rich fluids fill volcanic rock cavities, leaving layered deposits over time\u003c\/li\u003e\n\u003cli data-start=\"631\" data-end=\"738\"\u003ePhysical Properties: Mohs hardness 6.5–7; vitreous luster; fine-grained microcrystalline quartz structure\u003c\/li\u003e\n\u003cli data-start=\"741\" data-end=\"869\"\u003eEducational Value: Demonstrates chalcedony formation, rhythmic mineral deposition, and the durability of quartz-based minerals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"871\" data-end=\"987\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eA striking combination of natural geology and craftsmanship, perfect as an educational specimen or decorative piece.\u003c\/p\u003e","brand":"The Science Museum of Minnesota","offers":[{"title":"Default Title","offer_id":63312602235249,"sku":"SC-SMM-R6999-BAAGSK","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1467\/6660\/files\/0-Edited-2025-10-01T164135.338.png?v=1774036944","url":"https:\/\/www.skullsunlimited.com\/products\/banded-agate-skull-69-99","provider":"Skulls Unlimited International, Inc.","version":"1.0","type":"link"}