{"product_id":"amethyst-4-00","title":"Amethyst Mineral Specimen - Mini","description":"\u003cp data-start=\"153\" data-end=\"473\"\u003eAmethyst is a purple variety of quartz colored by trace amounts of iron. These crystals range from pale lavender to deep violet, depending on the conditions in which they formed. Each specimen offers a hands-on way to explore mineral formation, crystal growth, and the factors that influence color in natural minerals.\u003c\/p\u003e\n\u003cp data-start=\"475\" data-end=\"497\"\u003eWhy You’ll Love This\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"500\" data-end=\"594\"\u003eComposed of silicon dioxide with trace iron impurities that create its signature purple hues\u003c\/li\u003e\n\u003cli data-start=\"597\" data-end=\"685\"\u003eTransparent to translucent crystals with natural hexagonal structures and terminations\u003c\/li\u003e\n\u003cli data-start=\"688\" data-end=\"783\"\u003eForms in geodes and volcanic rock cavities, demonstrating real-world mineral growth processes\u003c\/li\u003e\n\u003cli data-start=\"786\" data-end=\"849\"\u003eHardness of 7 on the Mohs scale with a durable, glassy finish\u003c\/li\u003e\n\u003cli data-start=\"852\" data-end=\"922\"\u003eExcellent for studying crystal chemistry and mineral color variation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"924\" data-end=\"1047\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eA scientifically fascinating and visually captivating specimen that connects you to the processes shaping Earth’s minerals.\u003c\/p\u003e","brand":"The Science Museum of Minnesota","offers":[{"title":"Default Title","offer_id":63312599220593,"sku":"SC-SMM-R400-AMTH-Mini","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1467\/6660\/files\/NewStoreSite-BackgroundRemover-2026-03-12T104909.127.png?v=1774036935","url":"https:\/\/www.skullsunlimited.com\/products\/amethyst-4-00","provider":"Skulls Unlimited International, Inc.","version":"1.0","type":"link"}