{
 "resource": "country_reserves",
 "feed_version": "1.0.0",
 "dataset_version": "v2.137.21",
 "as_of": "2026-08-18",
 "publisher": "Afrimintel Ltd (Mauritius)",
 "coverage": {
  "jurisdictions_with_reserves": 20,
  "reserve_figures": 50
 },
 "quality_contract": "Mineral RESERVES (not production) by country and commodity, each read from the USGS Mineral Commodity Summaries 2026 'World Mine Production and Reserves' table. Every figure is state Sourced (US public domain), carries its BASIS (contained metal / ore / REO / TiO2 / carats) exactly as the USGS table states it, and is NOT interpolated. Dual-basis rows (iron ore, chromium: ore vs contained) are the SAME reserve on two bases and must never be summed. Reserves are a point-in-time estimate the source revises; as_of is the MCS edition.",
 "known_limits": [
  "USGS MCS itemises reserves only for the larger holders; many African producers are folded into 'Other countries' or carry 'NA'/'W' (withheld) and therefore carry NO reserve figure here — absence is the source's, not a gap we can fill from MCS.",
  "URANIUM is absent: USGS does not carry uranium in MCS (it is covered by EIA/OECD-NEA, whose licences differ). Niger/Namibia uranium reserves would need the OECD-NEA Red Book, not ingested.",
  "Gem-quality diamond reserves are carried (thousand carats); the MCS industrial-diamond chapter restates the SAME reserve in million carats and is deliberately NOT double-carried.",
  "Asset-level reserves (per named mine, from NI 43-101/JORC filings) are a separate future layer; this feed is country-level only."
 ],
 "countries": [
  {
   "country": "algeria",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Phosphate rock",
     "quantity": "2,200,000",
     "unit": "thousand metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "angola",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Diamond (gem-quality)",
     "quantity": "150,000",
     "unit": "thousand carats",
     "basis": "gem-quality natural diamond",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gemstones.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "botswana",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Diamond (gem-quality)",
     "quantity": "250,000",
     "unit": "thousand carats",
     "basis": "gem-quality natural diamond",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gemstones.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "drc",
   "reserve_count": 4,
   "reserves": [
    {
     "commodity": "Cobalt",
     "quantity": "6,000,000",
     "unit": "metric tons",
     "basis": "cobalt content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-cobalt.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Data-layer only."
    },
    {
     "commodity": "Copper",
     "quantity": "80,000",
     "unit": "thousand metric tons",
     "basis": "copper content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-copper.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Data-layer only."
    },
    {
     "commodity": "Tin",
     "quantity": "91,000",
     "unit": "metric tons",
     "basis": "tin content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-tin.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Data-layer only."
    },
    {
     "commodity": "Diamond (gem-quality)",
     "quantity": "150,000",
     "unit": "thousand carats",
     "basis": "gem-quality natural diamond",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gemstones.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Data-layer only."
    }
   ]
  },
  {
   "country": "egypt",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Phosphate rock",
     "quantity": "2,800,000",
     "unit": "thousand metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "gabon",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Manganese",
     "quantity": "61,000",
     "unit": "thousand metric tons",
     "basis": "ore (gross weight)",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-manganese.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "ghana",
   "reserve_count": 3,
   "reserves": [
    {
     "commodity": "Gold",
     "quantity": "1,000",
     "unit": "metric tons",
     "basis": "gold content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gold.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Lithium",
     "quantity": "200,000",
     "unit": "metric tons",
     "basis": "lithium content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Manganese",
     "quantity": "13,000",
     "unit": "thousand metric tons",
     "basis": "ore (gross weight)",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-manganese.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "guinea",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Bauxite",
     "quantity": "7,400,000",
     "unit": "thousand metric dry tons",
     "basis": "ore (dry bauxite)",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-bauxite-alumina.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "madagascar",
   "reserve_count": 3,
   "reserves": [
    {
     "commodity": "Cobalt",
     "quantity": "100,000",
     "unit": "metric tons",
     "basis": "cobalt content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-cobalt.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Graphite (natural)",
     "quantity": "27,000,000",
     "unit": "metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-graphite.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Ilmenite",
     "quantity": "30,000",
     "unit": "thousand metric tons",
     "basis": "TiO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-titanium-minerals.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "mali",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Lithium",
     "quantity": "370,000",
     "unit": "metric tons",
     "basis": "lithium content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "mauritania",
   "reserve_count": 2,
   "reserves": [
    {
     "commodity": "Iron ore",
     "quantity": "10,000",
     "unit": "million metric tons",
     "basis": "crude ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-iron-ore.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Iron ore",
     "quantity": "4,400",
     "unit": "million metric tons",
     "basis": "iron content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-iron-ore.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Same deposit as the crude-ore row on a contained-Fe basis; not additive."
    }
   ]
  },
  {
   "country": "morocco",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Phosphate rock",
     "quantity": "50,000,000",
     "unit": "thousand metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Territorial scope: USGS Morocco figure historically includes Western Sahara."
    }
   ]
  },
  {
   "country": "mozambique",
   "reserve_count": 3,
   "reserves": [
    {
     "commodity": "Graphite (natural)",
     "quantity": "25,000,000",
     "unit": "metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-graphite.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Rutile",
     "quantity": "720",
     "unit": "thousand metric tons",
     "basis": "TiO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-titanium-minerals.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Zircon",
     "quantity": "1,500",
     "unit": "thousand metric tons",
     "basis": "ZrO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-zirconium-hafnium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "namibia",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Lithium",
     "quantity": "230,000",
     "unit": "metric tons",
     "basis": "lithium content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "senegal",
   "reserve_count": 2,
   "reserves": [
    {
     "commodity": "Phosphate rock",
     "quantity": "50,000",
     "unit": "thousand metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Zircon",
     "quantity": "2,600",
     "unit": "thousand metric tons",
     "basis": "ZrO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-zirconium-hafnium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "sierra-leone",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Rutile",
     "quantity": "2,900",
     "unit": "thousand metric tons",
     "basis": "TiO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-titanium-minerals.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "south-africa",
   "reserve_count": 15,
   "reserves": [
    {
     "commodity": "Gold",
     "quantity": "5,000",
     "unit": "metric tons",
     "basis": "gold content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gold.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Manganese",
     "quantity": "550,000",
     "unit": "thousand metric tons",
     "basis": "ore (gross weight)",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-manganese.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Platinum-group metals",
     "quantity": "63,000,000",
     "unit": "kilograms",
     "basis": "PGM content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-platinum-group.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Phosphate rock",
     "quantity": "1,500,000",
     "unit": "thousand metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Rare earths",
     "quantity": "860,000",
     "unit": "metric tons",
     "basis": "REO equivalent",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-rare-earths.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Iron ore",
     "quantity": "1,200",
     "unit": "million metric tons",
     "basis": "crude ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-iron-ore.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Iron ore",
     "quantity": "680",
     "unit": "million metric tons",
     "basis": "iron content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-iron-ore.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Same deposit, contained-Fe basis; not additive."
    },
    {
     "commodity": "Ilmenite",
     "quantity": "28,000",
     "unit": "thousand metric tons",
     "basis": "TiO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-titanium-minerals.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Rutile",
     "quantity": "6,200",
     "unit": "thousand metric tons",
     "basis": "TiO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-titanium-minerals.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Zircon",
     "quantity": "5,900",
     "unit": "thousand metric tons",
     "basis": "ZrO2 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-zirconium-hafnium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Chromium",
     "quantity": "350,000",
     "unit": "thousand metric tons",
     "basis": "ore (gross weight)",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-chromium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Chromium",
     "quantity": "110,000",
     "unit": "thousand metric tons",
     "basis": "Cr2O3 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-chromium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Same reserve, contained basis; not additive."
    },
    {
     "commodity": "Vanadium",
     "quantity": "520",
     "unit": "thousand metric tons",
     "basis": "vanadium content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-vanadium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Fluorspar",
     "quantity": "41,000",
     "unit": "thousand metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-fluorspar.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Diamond (gem-quality)",
     "quantity": "87,000",
     "unit": "thousand carats",
     "basis": "gem-quality natural diamond",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gemstones.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "tanzania",
   "reserve_count": 2,
   "reserves": [
    {
     "commodity": "Graphite (natural)",
     "quantity": "18,000,000",
     "unit": "metric tons",
     "basis": "ore",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-graphite.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Rare earths",
     "quantity": "890,000",
     "unit": "metric tons",
     "basis": "REO equivalent",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-rare-earths.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "zambia",
   "reserve_count": 1,
   "reserves": [
    {
     "commodity": "Copper",
     "quantity": "21,000",
     "unit": "thousand metric tons",
     "basis": "copper content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-copper.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  },
  {
   "country": "zimbabwe",
   "reserve_count": 5,
   "reserves": [
    {
     "commodity": "Lithium",
     "quantity": "500,000",
     "unit": "metric tons",
     "basis": "lithium content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Platinum-group metals",
     "quantity": "1,300,000",
     "unit": "kilograms",
     "basis": "PGM content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-platinum-group.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Chromium",
     "quantity": "140,000",
     "unit": "thousand metric tons",
     "basis": "ore (gross weight)",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-chromium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    },
    {
     "commodity": "Chromium",
     "quantity": "78,000",
     "unit": "thousand metric tons",
     "basis": "Cr2O3 content",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-chromium.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs",
     "note": "Same reserve, contained basis; not additive."
    },
    {
     "commodity": "Diamond (gem-quality)",
     "quantity": "56,000",
     "unit": "thousand carats",
     "basis": "gem-quality natural diamond",
     "as_of_year": "2026",
     "source_title": "USGS Mineral Commodity Summaries 2026",
     "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gemstones.pdf",
     "licence": "US public domain (USGS, work of the US Government, 17 U.S.C. 105)",
     "state": "Sourced",
     "source_class": "usgs"
    }
   ]
  }
 ]
}