Related by context. Frequent words. (Click for all words.) 57 snail shells 55 irregular shapes 54 oblong 54 spherules 54 geometrical shapes 53 hollow tubes 53 ovoid 52 hexagons 52 spherical 52 globular 52 lobed 51 blobs 51 abstract shapes 51 cuboid 51 pentagons 51 moonlets 51 oval shaped 51 lunar soil 50 striations 50 indentations 50 salt crystals 50 protuberances 50 oddly shaped 50 lotus leaf 50 geometric shapes 50 cylindrical 50 rectangles 50 microstructures 50 perfectly symmetrical 50 tetrahedral 50 symmetries 50 pectoral fins 49 irregularly shaped 49 landforms 49 striated 49 cubes 49 ridged 49 clumpy 49 conical 48 igneous rocks 48 vortices 48 pretzel sticks 48 billiard balls 48 stalactite 48 rectangle 48 diametre 48 Earthlike 48 Kuiper Belt objects 48 triangles 48 shapes 47 graphene sheets 47 dye molecules 47 rectangular 47 silly putty 47 limpets 47 whorls 47 mounded 47 knobbly 47 rock outcrop 47 seedpods 47 petals 47 silicon atoms 47 nanoscopic 47 morphologies 47 landmasses 47 gummy worms 47 circular orbits 46 rectangular shaped 46 protrusions 46 puffballs 46 greenish brown 46 amphorae 46 stamen 46 hexagonal 46 sepals 46 geode 46 alternating layers 46 colored dots 46 mottled brown 46 olivine 46 stamens 46 stalactites 46 morphologically 46 termite mounds 46 hourglass shaped 46 photonic crystals 46 nanoribbons 46 rocky outcrops 46 pinecone 46 Lego blocks 46 concentric rings 46 pentagonal 46 nanosized 46 planetesimals 46 mussel shells 45 ostrich eggs 45 orbs 45 gumdrop 45 lattices 45 nanoclusters 45 pebbly