{"product_id":"pyrolusite-and-dolomite-ontario-canada","title":"Pyrolusite and Dolomite, Ontario, Canada","description":"\u003cp dir=\"ltr\"\u003eThese specimens show pyrolusite's classic dark steel-grey to black metallic habit. Fine botryoidal crusts and radiating in stalactitic growths, intergrown with dolomite, which appears as a paler cream-to-white, pearly-lustered carbonate matrix, forming its own small rhombohedral, saddle-shaped crystals alongside the manganese oxide. The contrast between the dull-metallic dark pyrolusite and the soft white dolomite gives these pieces good textural and tonal variation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eSteep Rock Iron Mine sits in Freeborn Township, Rainy River District, Ontario, part of the historic Atikokan iron-mining area. The deposit is best known for producing high-grade hematite ore, and manganese-oxide minerals like pyrolusite formed in association with the iron formation, occurring at sub-localities including the Roberts and Errington pits. The mine operated through the mid-20th century as one of Canada's significant iron sources before closing, and specimens from the district are collected today both for their mineralogy and their tie to a well-documented piece of Ontario mining history.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eMinerals: Pyrolusite, Dolomite\u003c\/li\u003e\n\u003cli\u003eLocality: Steep Rock Iron Mine, Freeborn Township, Rainy River District, Ontario, Canada\u003c\/li\u003e\n\u003cli\u003eDisplay: Freestanding\u003c\/li\u003e\n\u003cli\u003eCondition: Natural, uncut specimen\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atelier Lithic","offers":[{"title":"001 — 67g. 4x1.5x0.5 in","offer_id":48710029934804,"sku":null,"price":178.0,"currency_code":"CAD","in_stock":true},{"title":"00 2— 51g. 4.5x1.5x1 in","offer_id":48710029902036,"sku":null,"price":210.0,"currency_code":"CAD","in_stock":true},{"title":"003 — 78g. 5x2x1 in","offer_id":48710029967572,"sku":null,"price":255.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9021\/0260\/files\/4B49A9D1-B612-4D12-B1A7-8301350B6F68_1_105_c.jpg?v=1789942139","url":"https:\/\/www.atelierlithic.com\/products\/pyrolusite-and-dolomite-ontario-canada","provider":"Atelier Lithic","version":"1.0","type":"link"}