Periodic Table Database Schema - v0.6.3
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    CompositionCollection: Collection<
        {
            charge?: Single<PrimitiveProperty<number>>;
            components: Single<StructProperty<Component>>;
            condensedFormula?: Single<PrimitiveProperty<string>>;
            empiricalFormula?: Single<PrimitiveProperty<string>>;
            formula: Single<PrimitiveProperty<string>>;
        },
    >

    Registry of properties describing the chemical identity and stoichiometric ratios.