Figure S1 and Table S1 from Earth's earliest and deepest purported fossils may be iron-mineralized chemical gardens

Figure S1: Chemical garden filaments grown from ferrous sulfate seed grains (sieved to <63 μm) dispersed in sodium silicate solution show a unimodal distribution of diameters with a positive skew.; Table S1: Diameters measured on the photomicrographs shown in Figure S1.