{"product_id":"sieber-agate-flatstone-historic-german-smelting-slag-hardened-copper-by-product-from-sieber-collector-piece","title":"Sieber “Agate” Flatstone – Historic German Smelting Slag | Hardened Copper By-Product from Sieber | Collector Piece","description":"\u003cp data-start=\"619\" data-end=\"699\"\u003eThis \u003cstrong data-start=\"624\" data-end=\"652\"\u003eSieber “Agate” Flatstone\u003c\/strong\u003e is not a true agate in the geological sense.\u003c\/p\u003e\n\u003cp data-start=\"701\" data-end=\"1013\"\u003eDespite its name, Sieber Agate is actually a \u003cstrong data-start=\"746\" data-end=\"792\"\u003ehistoric copper smelting by-product (slag)\u003c\/strong\u003e from the mining region near Sieber, Germany. During metal extraction centuries ago, molten material cooled and hardened, forming glassy swirls and layered patterns that resemble agate — which is how it received its name.\u003c\/p\u003e\n\u003cp data-start=\"1015\" data-end=\"1096\"\u003eIt is \u003cstrong data-start=\"1021\" data-end=\"1043\"\u003eman-made in origin\u003c\/strong\u003e, later naturally weathered and solidified over time.\u003c\/p\u003e\n\u003cp data-start=\"1098\" data-end=\"1129\"\u003e🏺 \u003cstrong data-start=\"1101\" data-end=\"1127\"\u003eWhat Makes It Special:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1132\" data-end=\"1190\"\u003eHistoric metallurgical residue from German copper mining\u003c\/li\u003e\n\u003cli data-start=\"1193\" data-end=\"1247\"\u003eGlassy, patterned appearance resembling banded agate\u003c\/li\u003e\n\u003cli data-start=\"1250\" data-end=\"1295\"\u003eLimited material with regional significance\u003c\/li\u003e\n\u003cli data-start=\"1298\" data-end=\"1363\"\u003eInteresting crossover between mineralogy and industrial history\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1365\" data-end=\"1382\"\u003e💎 \u003cstrong data-start=\"1368\" data-end=\"1380\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1385\" data-end=\"1436\"\u003eMaterial: Historic smelting slag (“Sieber Agate”)\u003c\/li\u003e\n\u003cli data-start=\"1439\" data-end=\"1464\"\u003eOrigin: Sieber, Germany\u003c\/li\u003e\n\u003cli data-start=\"1467\" data-end=\"1487\"\u003ePolished flatstone\u003c\/li\u003e\n\u003cli data-start=\"1490\" data-end=\"1517\"\u003eRandom piece will be sent\u003c\/li\u003e\n\u003cli data-start=\"1520\" data-end=\"1555\"\u003ePersonally sourced and handpicked\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1557\" data-end=\"1704\"\u003eThis piece is ideal for:\u003cbr data-start=\"1581\" data-end=\"1584\"\u003e• Mineral collectors\u003cbr data-start=\"1604\" data-end=\"1607\"\u003e• Geological curiosity lovers\u003cbr data-start=\"1636\" data-end=\"1639\"\u003e• Industrial history enthusiasts\u003cbr data-start=\"1671\" data-end=\"1674\"\u003e• Unique conversation pieces\u003c\/p\u003e\n\u003cp data-start=\"1706\" data-end=\"1884\"\u003e🤍 Personally sourced and handpicked by our family-run crystal business in Dubai. We are a fully licensed business offering carefully selected mineral specimens and collectibles.\u003c\/p\u003e","brand":"Auralis Crystal Store","offers":[{"title":"Default Title","offer_id":44813326188646,"sku":null,"price":69.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4892\/8870\/files\/IMG_1592.jpg?v=1771764827","url":"https:\/\/auraliscrystals.com\/products\/sieber-agate-flatstone-historic-german-smelting-slag-hardened-copper-by-product-from-sieber-collector-piece","provider":"Auralis Crystal Store","version":"1.0","type":"link"}