{"product_id":"ruby-tourmaline-3-00","title":"Ruby Tourmaline $3.00","description":"\u003cp data-start=\"76\" data-end=\"434\"\u003eTumbled ruby tourmaline combines two distinct minerals: red or pink tourmaline (a boron silicate mineral) and, in some specimens, small inclusions or associations with corundum (ruby, aluminum oxide). These stones are polished to enhance their color and texture, making their mineral composition easier to observe.\u003c\/p\u003e\n\u003cp data-start=\"436\" data-end=\"445\"\u003eFeatures:\u003c\/p\u003e\n\u003cul data-start=\"447\" data-end=\"1167\"\u003e\n\u003cli data-start=\"447\" data-end=\"605\"\u003e\n\u003cp data-start=\"449\" data-end=\"605\"\u003eComposition: Primarily tourmaline (complex borosilicate with elements like lithium, aluminum, and iron), occasionally with corundum (Al₂O₃) present as ruby.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"607\" data-end=\"722\"\u003e\n\u003cp data-start=\"609\" data-end=\"722\"\u003eAppearance: Deep pink to reddish hues with occasional banding, zoning, or speckling; polished to a smooth finish.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"724\" data-end=\"852\"\u003e\n\u003cp data-start=\"726\" data-end=\"852\"\u003eFormation: Develops in igneous and metamorphic environments, especially in pegmatites and high-temperature hydrothermal veins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"854\" data-end=\"1007\"\u003e\n\u003cp data-start=\"856\" data-end=\"1007\"\u003ePhysical Properties: Tourmaline has a Mohs hardness of 7–7.5; ruby (if present) is harder, at 9. Both minerals are durable and resistant to weathering.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1009\" data-end=\"1167\"\u003e\n\u003cp data-start=\"1011\" data-end=\"1167\"\u003eEducational Value: Useful for studying complex mineral chemistry, crystal zoning, and the conditions under which different gem-quality minerals can coexist.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1169\" data-end=\"1306\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eTumbled ruby tourmaline is a colorful and durable example of how geological processes can produce visually striking mineral combinations.\u003c\/p\u003e","brand":"The Science Museum of Minnesota","offers":[{"title":"Default Title","offer_id":67599756034345,"sku":"R300","price":3.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1321\/7603\/files\/New_Store_Site_-_Background_Remover_1.png?v=1791574561","url":"https:\/\/www.theurbancharm.com\/products\/ruby-tourmaline-3-00","provider":"The Urban Charm ","version":"1.0","type":"link"}