Finding a planet that's truly like our own will need a holistic, multi-disciplinary approach to solve. Whilst there are multiple criteria for what constitutes a planet like ours, we can utilise large scale galactic archaeology surveys in exoplanetary science to refine the physical properties of planet-hosting stars, whilst uncovering their chemical makeup. We can use a host star's mass and size alongside its iron, magnesium, and silicon abundances to determine the geological composition of rocky planets they host, which can then help us determine if an exoplanet is truly terrestrial in nature. Using GALAH DR3, we revise the physical properties (size and mass) of XX exoplanets. GALAH DR3 also [provides the chemical abundances for ZZ elements which we use in this project to determine whether there are any chemical anomalies between rocky-world hosting stars, and stars that host other types of planets. We also explore their host's C/O, Mg/Si, and Fe/Si abundances, and use these to determine the chemical and geological compositions for YY exoplanets. Exciting results to come :)