Related by context. Frequent words. (Click for all words.) 58 perovskite 57 isotope ratios 57 elemental composition 56 silicates 56 nanosized 56 solar nebula 55 isotopic composition 55 isotopic 55 silicate 54 protoplanetary disk 54 apatite 54 zircons 54 magmas 54 morphologies 54 monazite 54 planetesimals 54 abundances 53 aragonite 53 olivine 53 planetary nebulae 53 adsorbed 53 cometary 53 sulfide minerals 53 metallicity 53 spectroscopic 53 corundum 53 nanocrystalline 53 noble gases 52 osmium 52 Fig. 1A 52 lavas 52 spinel 52 organic molecules 52 samarium 52 naturally occuring 52 spectral signatures 51 anisotropy 51 carbonaceous 51 biogenic 51 abiotic 51 iron oxides 51 particle sizes 51 radiative 51 exosphere 51 labile 51 radioactive decay 51 agglomerates 51 spherules 50 physicochemical 50 terrestrial planets 50 interstellar medium 50 microfossils 50 nanoparticulate 50 endosperm 50 electron density 50 kaolinite 50 lunar soil 50 hydroxyl 50 basaltic 50 γ 50 spectra 49 dopant 49 stellar nurseries 49 marine sediments 49 nanoclusters 49 regolith 49 agglomerated 49 sorption 49 igneous 49 interstellar dust 49 colloid 49 analyte 49 sulphates 49 biomolecule 49 protostars 49 aerosol particles 49 reactants 49 porphyrin 49 calcium sulfate 49 baryons 49 manganese oxide 49 plasmon 49 fluxes 49 decoherence 49 dispersive 49 ejecta 49 icy moons 49 nanoscopic 49 crystallographic 49 meteorite impacts 48 prebiotic 48 SiO 2 48 dopants 48 nuclei 48 inorganic compounds 48 absorbance 48 gaseous planets 48 methanogens 48 globular clusters 48 chemical composition 48 dynamical