{"title":"Siderite","description":"\u003cp data-start=\"0\" data-end=\"92\"\u003eLa siderite è un \u003cstrong data-start=\"19\" data-end=\"30\"\u003eminerale\u003c\/strong\u003e e un \u003cstrong data-start=\"37\" data-end=\"55\"\u003eminerale di ferro\u003c\/strong\u003e importante.\u003c\/p\u003e\n\u003chr data-start=\"94\" data-end=\"97\"\u003e\n\u003ch3 data-start=\"99\" data-end=\"139\"\u003e🔍 \u003cstrong data-start=\"106\" data-end=\"139\"\u003eIdentificazione della siderite\u003c\/strong\u003e\n\n\u003c\/h3\u003e\n\u003cul data-start=\"140\" data-end=\"402\"\u003e\n\n\u003cli data-start=\"140\" data-end=\"189\"\u003e\n\n\u003cp data-start=\"142\" data-end=\"189\"\u003e\u003cstrong data-start=\"142\" data-end=\"162\"\u003eFormula chimica\u003c\/strong\u003e : FeCO₃ (carbonato di ferro)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"190\" data-end=\"225\"\u003e\n\n\u003cp data-start=\"192\" data-end=\"225\"\u003e\u003cstrong data-start=\"192\" data-end=\"214\"\u003eSistema cristallino\u003c\/strong\u003e : Trigonale\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"226\" data-end=\"295\"\u003e\n\n\u003cp data-start=\"228\" data-end=\"295\"\u003e\u003cstrong data-start=\"228\" data-end=\"239\"\u003eColore\u003c\/strong\u003e : Da bruno giallastro a bruno scuro, a volte grigio o verde pallido\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"296\" data-end=\"325\"\u003e\n\n\u003cp data-start=\"298\" data-end=\"325\"\u003e\u003cstrong data-start=\"298\" data-end=\"307\"\u003eLucentezza\u003c\/strong\u003e : Da vitrea a madreperlacea\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"326\" data-end=\"368\"\u003e\n\n\u003cp data-start=\"328\" data-end=\"368\"\u003e\u003cstrong data-start=\"328\" data-end=\"356\"\u003eDurezza (scala di Mohs)\u003c\/strong\u003e : 3,5 a 4,5\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"369\" data-end=\"402\"\u003e\n\n\u003cp data-start=\"371\" data-end=\"402\"\u003e\u003cstrong data-start=\"371\" data-end=\"382\"\u003eDensità\u003c\/strong\u003e : Circa 3,8 g\/cm³\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr data-start=\"404\" data-end=\"407\"\u003e\n\u003ch3 data-start=\"409\" data-end=\"442\"\u003e🪨 \u003cstrong data-start=\"416\" data-end=\"442\"\u003eFormazione e giacimenti\u003c\/strong\u003e\n\n\u003c\/h3\u003e\n\u003cp data-start=\"443\" data-end=\"485\"\u003eLa siderite si forma principalmente in:\u003c\/p\u003e\n\u003cul data-start=\"486\" data-end=\"719\"\u003e\n\n\u003cli data-start=\"486\" data-end=\"550\"\u003e\n\n\u003cp data-start=\"488\" data-end=\"550\"\u003e\u003cstrong data-start=\"492\" data-end=\"517\"\u003evene idrotermali\u003c\/strong\u003e a bassa o media temperatura;\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"551\" data-end=\"668\"\u003e\n\n\u003cp data-start=\"553\" data-end=\"668\"\u003e\u003cstrong data-start=\"557\" data-end=\"589\"\u003eambienti sedimentari\u003c\/strong\u003e, in particolare in associazione con altri minerali di ferro (ematite, goethite);\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"669\" data-end=\"719\"\u003e\n\n\u003cp data-start=\"671\" data-end=\"719\"\u003e\u003cstrong data-start=\"675\" data-end=\"700\"\u003erocce metamorfiche\u003c\/strong\u003e, a volte alterate.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"721\" data-end=\"814\"\u003eÈ spesso associata a \u003cstrong data-start=\"752\" data-end=\"763\"\u003ecalcite\u003c\/strong\u003e, \u003cstrong data-start=\"768\" data-end=\"780\"\u003edolomite\u003c\/strong\u003e, \u003cstrong data-start=\"785\" data-end=\"795\"\u003epirite\u003c\/strong\u003e e \u003cstrong data-start=\"803\" data-end=\"813\"\u003egalena\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"816\" data-end=\"819\"\u003e\n\u003ch3 data-start=\"821\" data-end=\"843\"\u003e⚒️ \u003cstrong data-start=\"828\" data-end=\"843\"\u003eUtilizzo\u003c\/strong\u003e\n\n\u003c\/h3\u003e\n\u003cul data-start=\"844\" data-end=\"1212\"\u003e\n\n\u003cli data-start=\"844\" data-end=\"961\"\u003e\n\n\u003cp data-start=\"846\" data-end=\"961\"\u003e\u003cstrong data-start=\"846\" data-end=\"864\"\u003eMinerale di ferro\u003c\/strong\u003e : contiene circa il 48% di ferro, il che la rende una risorsa sfruttata in alcune regioni.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"962\" data-end=\"1212\"\u003e\n\n\u003cp data-start=\"964\" data-end=\"1028\"\u003eOggi è meno utilizzata rispetto all'ematite o alla magnetite, perché:\u003c\/p\u003e\n\n\u003cul data-start=\"1031\" data-end=\"1212\"\u003e\n\n\u003cli data-start=\"1031\" data-end=\"1148\"\u003e\n\n\u003cp data-start=\"1033\" data-end=\"1148\"\u003erichiede una \u003cstrong data-start=\"1052\" data-end=\"1067\"\u003ecalcinazione\u003c\/strong\u003e (riscaldamento per rimuovere la CO₂) prima di essere utilizzata negli altiforni;\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"1151\" data-end=\"1212\"\u003e\n\n\u003cp data-start=\"1153\" data-end=\"1212\"\u003ela sua \u003cstrong data-start=\"1156\" data-end=\"1190\"\u003epercentuale di ferro è meno elevata\u003c\/strong\u003e di quella degli ossidi.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr data-start=\"1214\" data-end=\"1217\"\u003e\n\u003ch3 data-start=\"1219\" data-end=\"1250\"\u003e🌍 \u003cstrong data-start=\"1226\" data-end=\"1250\"\u003ePrincipali giacimenti\u003c\/strong\u003e\n\n\u003c\/h3\u003e\n\u003cul data-start=\"1251\" data-end=\"1406\"\u003e\n\n\u003cli data-start=\"1251\" data-end=\"1364\"\u003e\n\n\u003cp data-start=\"1253\" data-end=\"1364\"\u003eEuropa: Germania (storicamente nella regione del Siegerland), Regno Unito (Cornovaglia), Francia (Lorena)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"1365\" data-end=\"1406\"\u003e\n\n\u003cp data-start=\"1367\" data-end=\"1406\"\u003eStati Uniti, Brasile, Russia, Cina, ecc.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","products":[{"product_id":"pendentif-siderite-dans-cryolite-groenland-a-pierre-trouee-cordon","title":"Ciondolo di Siderite in Criolite Groenlandia A (pietra forata) + cordino","description":"\u003cp\u003ePEN-SIDCRYPT-01\u003cbr\u003eOrigine: Groenlandia\u003cbr\u003eGrado: A \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"PBMainTxt\"\u003eDimensioni:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'Open Sans', helvetica, arial, sans-serif;\"\u003eCirca 3cm x 2,2cm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"PBMainTxt\"\u003ePeso:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'Open Sans', helvetica, arial, sans-serif;\"\u003eCirca 10g\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"PBMainTxt\"\u003eOrigine:\u003c\/span\u003e\u003cbr\u003e\u003cspan open=\"\" sans=\"\" helvetica=\"\" arial=\"\" sans-serif=\"\"\u003eGroenlandia\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"PBMainTxt\"\u003eGrado:\u003c\/span\u003e\u003cbr\u003eA = buona\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eSiderite in criolite forata fornita con un cordino in cotone cerato da 1mm.\u003cbr\u003e\u003c\/p\u003e","brand":"La Boite à Cailloux","offers":[{"title":"Default Title","offer_id":48791370891612,"sku":"PEN-SIDCRYPT-01","price":18.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/8577\/6732\/files\/pendentif-siderite-dans-cryolite-groenland-a-pierre-trouee-cordon-8430504.jpg?v=1779717972"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/8577\/6732\/collections\/siderite-4743564.jpg?v=1779712450","url":"https:\/\/www.laboiteacailloux.com\/it\/collections\/siderite.oembed","provider":"La Boite à Cailloux","version":"1.0","type":"link"}