{
  "copper_resources": {
    "porphyry_copper": {
      "display_name": "Porphyry Copper",
      "description": "Large-scale copper deposit in igneous intrusion with molybdenum traces",
      "formation_type": "igneous_hydrothermal_intrusion",
      "extraction_difficulty": "hard",
      "budget_impact": 5,
      "resource_yield": "very_high",
      "quality": "premium"
    },
    "copper_vein": {
      "display_name": "Copper Vein",
      "description": "High-grade copper ore in hydrothermal veins with excellent purity",
      "formation_type": "hydrothermal_vein_formation",
      "extraction_difficulty": "medium",
      "budget_impact": 4,
      "resource_yield": "high",
      "quality": "premium"
    },
    "chalcopyrite_deposit": {
      "display_name": "Chalcopyrite Deposit",
      "description": "Standard copper sulfide ore suitable for flotation processing",
      "formation_type": "sulfide_mineralization",
      "extraction_difficulty": "medium",
      "budget_impact": 3,
      "resource_yield": "medium",
      "quality": "standard"
    },
    "malachite_outcrop": {
      "display_name": "Malachite Outcrop",
      "description": "Green copper carbonate formation indicating deeper copper deposits",
      "formation_type": "copper_oxidation_zone",
      "extraction_difficulty": "easy",
      "budget_impact": 2,
      "resource_yield": "medium",
      "quality": "standard"
    },
    "native_copper": {
      "display_name": "Native Copper",
      "description": "Pure metallic copper deposits requiring minimal processing",
      "formation_type": "basalt_flow_copper_precipitation",
      "extraction_difficulty": "easy",
      "budget_impact": 3,
      "resource_yield": "low",
      "quality": "premium"
    },
    "copper_shale": {
      "display_name": "Copper Shale",
      "description": "Sedimentary copper deposit with low grade but large extent",
      "formation_type": "sedimentary_copper_precipitation",
      "extraction_difficulty": "very_hard",
      "budget_impact": 2,
      "resource_yield": "high",
      "quality": "low"
    }
  }
}