{"product_id":"native-copper-specimen-kearsarge-mine-houghton-county-michigan-usa","title":"Native Copper Specimen – Kearsarge Mine, Houghton County, Michigan, USA","description":"\u003cp\u003eAuthentic native copper specimen from the historic Kearsarge Mine in Michigan’s Copper Country. This region is world-famous for producing naturally occurring copper in distinctive forms, including masses, sheets, and wire-like structures.\u003c\/p\u003e\n\u003cp\u003eThis piece displays natural copper formation with classic warm tones and texture, developed through geological processes rather than smelting or refinement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecimen Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMineral: Native Copper\u003c\/li\u003e\n\u003cli\u003eLocality: Kearsarge Mine, Houghton County, Michigan, USA\u003c\/li\u003e\n\u003cli\u003eSize: 80 × 27 × 80 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 6.5 oz\u003c\/li\u003e\n\u003cli\u003eCondition: Natural specimen with typical surface patina\u003c\/li\u003e\n\u003cli\u003eDisplay: Cabinet \/ miniature specimen\u003c\/li\u003e\n\u003cli\u003eEX: Billy Williams Collection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhy this piece stands out:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClassic Michigan Copper Country locality\u003c\/li\u003e\n\u003cli\u003eNaturally occurring native metal formation\u003c\/li\u003e\n\u003cli\u003eWarm copper tones with authentic patina\u003c\/li\u003e\n\u003cli\u003eRecognized and widely collected mineral\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCollector Note:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMichigan’s Keweenaw Peninsula is one of the few places in the world where native copper occurs in significant quantities. Specimens from historic mines like Kearsarge remain popular due to their geological significance and mining heritage.\u003c\/p\u003e\n\u003cp\u003eOne-of-a-kind specimen — once it’s gone, it’s gone.\u003c\/p\u003e","brand":"Prospector's Vault","offers":[{"title":"Default Title","offer_id":42379669176402,"sku":null,"price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/8805\/6146\/files\/Native_Copper.png?v=1777153824","url":"https:\/\/prospectorsvault.com\/products\/native-copper-specimen-kearsarge-mine-houghton-county-michigan-usa","provider":"Prospector's Vault","version":"1.0","type":"link"}