[{:crux.db/id :commodity/Pu
    :common-name "Plutonium"
    :type :element/metal
    :density 19.816
    :radioactive true}

   {:crux.db/id :commodity/N
    :common-name "Nitrogen"
    :type :element/gas
    :density 1.2506
    :radioactive false}

   {:crux.db/id :commodity/CH4
    :common-name "Methane"
    :type :molecule/gas
    :density 0.717
    :radioactive false}

   {:crux.db/id :commodity/Au
    :common-name "Gold"
    :type :element/metal
    :density 19.300
    :radioactive false}

   {:crux.db/id :commodity/C
    :common-name "Carbon"
    :type :element/non-metal
    :density 2.267
    :radioactive false}

   {:crux.db/id :commodity/borax
    :common-name "Borax"
    :IUPAC-name "Sodium tetraborate decahydrate"
    :other-names ["Borax decahydrate" "sodium borate"
                  "sodium tetraborate" "disodium tetraborate"]
    :type :mineral/solid
    :appearance "white solid"
    :density 1.73
    :radioactive false}]