Related by context. Frequent words. (Click for all words.) 66 whorls 61 stippling 60 striated 60 speckles 58 iridescence 58 stippled 58 irregular shapes 57 texture 56 indentations 56 mottling 56 textured surfaces 55 textures 55 impasto 55 greenish brown 54 spherules 54 landforms 54 translucence 54 ridges 54 morphologies 53 tracery 53 coloration 53 mottled 53 coppery 53 marbleized 53 salt crystals 52 blotches 52 pleating 52 whorl 52 anisotropy 52 clasts 52 reddish 52 whitish 52 heartwood 52 reddish color 52 stalactite 52 geometric 52 brushwork 52 geometric shapes 52 geometric patterns 52 abstract shapes 51 curvatures 51 brushstrokes 51 anisotropic 51 iron oxides 51 discolorations 51 abraded 51 igneous rock 51 angularity 51 greenish blue 51 microstructures 51 squiggles 51 geometric pattern 51 sawtooth 50 geometric designs 50 calcite 50 latitudinal 50 geometric forms 50 brownish red 50 textural 50 zigzag pattern 50 spectral signatures 50 skeletonized 50 incised 50 setae 50 collagen fibers 50 translucency 50 scrollwork 50 jagged edges 50 minerality 50 silvery gray 50 deformation 50 morphology 49 textured 49 ragged edges 49 Fig. 1A 49 reddish purple 49 brecciation 49 reddish pink 49 stalagmites 49 reddish hue 49 nacre 49 iridescent blue 49 insets 49 hourglass shape 49 blueness 49 purplish 49 electron density 49 continental crust 49 bluish gray 49 roundness 49 floral motifs 49 discontinuities 49 fractal 49 checkerboard pattern 49 darkish 49 pebbly 49 shimmer 48 orange hue 48 yellowish 48 leafless trees 48 rock outcrops