[
  {
    "Name": "BHVO-2",
    "Reference": "https://www.usgs.gov/media/files/bhvo-2-geochemical-reference-material-information-sheet",
    "Classification": {"Terrestrial basalt": {"USGS reference material": "Hawaiian basalt"}},
    "Major": {
      "SiO2": {"Value": 49.60, "Unit": "wt%", "err": 0.14, "Reference": "USGS BHVO-2 Information Sheet, Table 1"},
      "Al2O3": {"Value": 13.44, "Unit": "wt%", "err": 0.06, "Reference": "USGS BHVO-2 Information Sheet, Table 1"},
      "TiO2": {"Value": 2.731, "Unit": "wt%", "err": 0.018, "Reference": "USGS BHVO-2 Information Sheet, Table 1"},
      "MgO": {"Value": 7.257, "Unit": "wt%", "err": 0.042, "Reference": "USGS BHVO-2 Information Sheet, Table 1"}
    },
    "Trace": {
      "La": {"Value": 15.20, "Unit": "ppm", "err": 0.08, "Reference": "USGS BHVO-2 Information Sheet, Table 2"},
      "Ce": {"Value": 37.53, "Unit": "ppm", "err": 0.19, "Reference": "USGS BHVO-2 Information Sheet, Table 2"},
      "Ni": {"Value": 119.8, "Unit": "ppm", "err": 1.2, "Reference": "USGS BHVO-2 Information Sheet, Table 2"}
    },
    "Location": {
      "Latitude": {"Value": 19.421, "Unit": "degree", "Reference": "https://www.usgs.gov/volcanoes/kilauea"},
      "Longitude": {"Value": -155.287, "Unit": "degree", "Reference": "https://www.usgs.gov/volcanoes/kilauea"},
      "Elevation": {"Value": 1222, "Unit": "m", "Reference": "https://www.usgs.gov/volcanoes/kilauea"}
    },
    "Metadata": {"Coordinate Note": "Kilauea summit coordinates are public site coordinates, not a sample-level GPS measurement."}
  }
]