Sometimes LEGO can be educational in the most unexpected ways. For instance, I had no idea that chert was a type of sedimentary rock until I espied the aptly-named Chert Chewer by builder Zane Houston. And, boy, does this Rock Raiders mech know how to chew! Equipped with 6 chrome drill bits, there’s no stopping this beast from taking down it’s quarry. The whole thing is a beautiful balance of color, occasionally allowing bits of turquoise and yellow to pop out from behind its gray skin. And I appreciate the inferred articulation with joints and pistons all over the hulk, frozen in place as it scoops out another handful of rubble. But the base it stands upon is by far the highlight for me! Those clean striations in the brown rock set the perfect scene for when the chert needs to be chewed.