Rare earths, critical minerals and geology explained simply by a mining engineer: news with context and in-depth guides, from Brazil.https://blog-de-minerais.vercel.app/en/enhttps://blog-de-minerais.vercel.app/en/blog/brazil-critical-minerals-council/https://blog-de-minerais.vercel.app/en/blog/brazil-critical-minerals-council/What is CIMCE, the council regulating critical and strategic minerals in Brazil, how it is structured and why the sector is watching closely.Fri, 30 Oct 2026 00:00:00 GMTMining Newshttps://blog-de-minerais.vercel.app/en/blog/deep-sea-mining-what-it-is/https://blog-de-minerais.vercel.app/en/blog/deep-sea-mining-what-it-is/What deep-sea mining is, which minerals lie on the ocean floor, where Brazil is researching, and why the topic divides scientists, governments, and companies.Fri, 30 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/what-is-niobium/https://blog-de-minerais.vercel.app/en/blog/what-is-niobium/Niobium: learn what this metal is, why it makes steel stronger, what it is used for and how Brazil came to own almost all of world production.Wed, 28 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/are-rare-earths-radioactive/https://blog-de-minerais.vercel.app/en/blog/are-rare-earths-radioactive/Rare earths are not radioactive, but their ore often carries thorium and uranium. Where the risk comes from, how Brazil regulates it and what is exaggerated.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/brazil-critical-minerals-law-15506/https://blog-de-minerais.vercel.app/en/blog/brazil-critical-minerals-law-15506/What Brazil's Law 15,506/2026, which created the National Policy on Critical and Strategic Minerals, provides: why it matters, pros, cons and what's next.Mon, 26 Oct 2026 00:00:00 GMTMining Newshttps://blog-de-minerais.vercel.app/en/blog/brazil-rare-earth-reserves/https://blog-de-minerais.vercel.app/en/blog/brazil-rare-earth-reserves/Brazil has the second-largest rare earth reserves, but the figure fell from 21 to about 11 million metric tons. Here is what the revision means.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/caldeira-project-pocos-de-caldas/https://blog-de-minerais.vercel.app/en/blog/caldeira-project-pocos-de-caldas/Australia's Lynas agreed to buy Meteoric, owner of the Caldeira rare earth project in Poços de Caldas, Brazil. The deal and what is still pending.Mon, 26 Oct 2026 00:00:00 GMTMining Newshttps://blog-de-minerais.vercel.app/en/blog/environmental-impacts-of-mining/https://blog-de-minerais.vercel.app/en/blog/environmental-impacts-of-mining/Water, soil, air, noise, wildlife and communities: the main environmental impacts of mining, how they differ from illegal wildcat mining and how to reduce them.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/environmental-licensing-of-mining-in-brazil/https://blog-de-minerais.vercel.app/en/blog/environmental-licensing-of-mining-in-brazil/Environmental licensing of mining in Brazil: LP, LI and LO, EIA/Rima, public hearings, who issues licenses, deadlines and what changed with Law 15,190/2025.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/foreign-capital-in-brazilian-rare-earths/https://blog-de-minerais.vercel.app/en/blog/foreign-capital-in-brazilian-rare-earths/Foreign firms hold 42% of rare earth exploration applications in Brazil and most of the advanced projects. See who they are and what the new law says.Mon, 26 Oct 2026 00:00:00 GMTMining Newshttps://blog-de-minerais.vercel.app/en/blog/how-a-mine-works/https://blog-de-minerais.vercel.app/en/blog/how-a-mine-works/How a mine works in Brazil, step by step: mineral exploration, permits, open-pit or underground mining, mineral processing and closure.Mon, 26 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/how-rare-earths-are-separated/https://blog-de-minerais.vercel.app/en/blog/how-rare-earths-are-separated/Understand rare earth separation: why nearly identical elements are so hard to split, how solvent extraction works and who dominates this step.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/ionic-clay-deposits/https://blog-de-minerais.vercel.app/en/blog/ionic-clay-deposits/What an ionic clay rare earth deposit is, how it forms, why it draws interest and what its impacts are, with examples from China, Goiás and Minas Gerais.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/lithium-in-the-jequitinhonha-valley/https://blog-de-minerais.vercel.app/en/blog/lithium-in-the-jequitinhonha-valley/Lithium in Brazil's Jequitinhonha Valley: investment, GDP and royalties on one side; dust, cracked houses, water and quilombola consultation on the other.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/mine-closure-and-land-rehabilitation/https://blog-de-minerais.vercel.app/en/blog/mine-closure-and-land-rehabilitation/How land degraded by mining is rehabilitated: closure plan, stability, revegetation, monitoring, future land use and abandoned mines in Brazil.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/mineral-exploration-how-deposits-are-found/https://blog-de-minerais.vercel.app/en/blog/mineral-exploration-how-deposits-are-found/Mineral exploration explained: from geological maps to drilling, resource vs. reserve, the legal steps at Brazil's ANM and why it takes years and costs a lot.Mon, 26 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/mineral-ore-and-rock/https://blog-de-minerais.vercel.app/en/blog/mineral-ore-and-rock/The difference between mineral, rock and ore, with examples from Brazil, cutoff grade, gangue, waste rock, tailings and common exam traps.Mon, 26 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/mineral-processing/https://blog-de-minerais.vercel.app/en/blog/mineral-processing/Mineral processing step by step: crushing, grinding, classification, concentration, dewatering, grade and recovery, tailings, water and energy.Mon, 26 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/minerals-in-construction/https://blog-de-minerais.vercel.app/en/blog/minerals-in-construction/Sand, crushed stone, limestone, gypsum, clay, stone and iron: the minerals used in construction, how much is used, how it is licensed and the impacts.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/minerals-in-electric-cars/https://blog-de-minerais.vercel.app/en/blog/minerals-in-electric-cars/Lithium, nickel, cobalt, graphite, copper, rare earths and aluminum: which minerals go into an electric car, where they are and in what amounts.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/minerals-in-fertilizers/https://blog-de-minerais.vercel.app/en/blog/minerals-in-fertilizers/Which minerals are in fertilizers, where potassium, phosphate and agricultural lime come from, and why Brazil imports over 90% of its fertilizer.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/minerals-in-your-phone/https://blog-de-minerais.vercel.app/en/blog/minerals-in-your-phone/Lithium, cobalt, tin, tantalum, indium, copper, gold and rare earths: which minerals are in your phone, where they sit in the device and where they come from.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/mining-in-everyday-life/https://blog-de-minerais.vercel.app/en/blog/mining-in-everyday-life/From the cement in your walls to the phone in your pocket: which minerals are in your home, kitchen, car and food, with data and sources.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/mining-myths-and-facts/https://blog-de-minerais.vercel.app/en/blog/mining-myths-and-facts/Are mining and garimpo the same thing? Does every mine end up as an abandoned hole? What changed after Brumadinho? Myths and facts, with sources.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/mining-on-indigenous-lands-in-brazil/https://blog-de-minerais.vercel.app/en/blog/mining-on-indigenous-lands-in-brazil/Brazil's Supreme Court gave Congress 24 months to regulate mining on Indigenous lands. See the bills under review, each side's arguments and what to watch.Mon, 26 Oct 2026 00:00:00 GMTMining Newshttps://blog-de-minerais.vercel.app/en/blog/neodymium-magnets/https://blog-de-minerais.vercel.app/en/blog/neodymium-magnets/What the neodymium-iron-boron magnet is, who invented it, why it's so strong, where it's used, why it has dysprosium and terbium, and why China leads.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/open-pit-vs-underground-mining/https://blog-de-minerais.vercel.app/en/blog/open-pit-vs-underground-mining/How engineers choose between open-pit and underground mines, what benches and drifts are, the main mining methods and when a pit turns into a tunnel.Mon, 26 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/rare-earths-in-brazil-where-they-are/https://blog-de-minerais.vercel.app/en/blog/rare-earths-in-brazil-where-they-are/Rare earths in Brazil in 2026, mapped and explained: the Goiás mine, the Minas Gerais and Bahia projects, the deposit types and the stage of each one.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/serra-verde-rare-earth-mine-goias/https://blog-de-minerais.vercel.app/en/blog/serra-verde-rare-earth-mine-goias/How Serra Verde's Pela Ema mine in Minaçu, Brazil, works: ionic clay, mining, concentrate, output, the sale to USA Rare Earth and licensing.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/tailings-dams/https://blog-de-minerais.vercel.app/en/blog/tailings-dams/What a tailings dam is, how it is built, why the upstream method is the riskiest, and what changed in Brazil's rules after Mariana and Brumadinho.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/urban-mining-e-waste/https://blog-de-minerais.vercel.app/en/blog/urban-mining-e-waste/Urban mining recovers metals from discarded electronics and batteries. See how much it supplies, where it works and why it can't replace mines yet.Mon, 26 Oct 2026 00:00:00 GMTEnvironmenthttps://blog-de-minerais.vercel.app/en/blog/what-are-critical-minerals/https://blog-de-minerais.vercel.app/en/blog/what-are-critical-minerals/What critical and strategic minerals are under Brazil's Law 15,506/2026, who sets the list, how the US and EU do it, and why demand is growing.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/what-are-rare-earths/https://blog-de-minerais.vercel.app/en/blog/what-are-rare-earths/What rare earths are, where they show up in your daily life, why China dominates the sector and the role of Brazil, with the world's second-largest reserves.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/what-does-a-mining-engineer-do/https://blog-de-minerais.vercel.app/en/blog/what-does-a-mining-engineer-do/What a mining engineer does: areas of work, legal duties in Brazil, where they work and what it takes to practice the profession.Mon, 26 Oct 2026 00:00:00 GMTGeology and Mining Engineeringhttps://blog-de-minerais.vercel.app/en/blog/what-is-lithium/https://blog-de-minerais.vercel.app/en/blog/what-is-lithium/What is lithium used for? Learn what this metal is, where it comes from, how much goes into batteries and how Brazil produces spodumene in Minas Gerais.Mon, 26 Oct 2026 00:00:00 GMTMinerals in Everyday Lifehttps://blog-de-minerais.vercel.app/en/blog/why-china-dominates-rare-earths/https://blog-de-minerais.vercel.app/en/blog/why-china-dominates-rare-earths/How China came to control rare earth mining, refining and magnets, when it used that power, and what the US, Australia, Japan and Europe are doing.Mon, 26 Oct 2026 00:00:00 GMTRare Earthshttps://blog-de-minerais.vercel.app/en/blog/why-everyone-is-talking-about-rare-earths/https://blog-de-minerais.vercel.app/en/blog/why-everyone-is-talking-about-rare-earths/A mine sold to a US company, talks with the United States, a new law and an election: why rare earths became a political issue in Brazil.Mon, 26 Oct 2026 00:00:00 GMTMining News