chromceladonitechromdiopsidechromdravitechromechrome diopsidechrome iron orechrome micachromferidechromititechromiumchromocraticchromphyllitechronchronataxischronegenesischronographchronolithchronologychronometerchronometrychronomorph soilchronostratic unit or chronostratic or chronostraticchronozonechrysoberylchrysocolla chalcedonychrysocolla or bisbeeite or bisbeeitechrysocollechrysolitchrysolitechrysomonadchrysophyricchrysoprasechrysoquartzchrysotilechrystalischthonicchthonienchubutite or lorettoite or lorettoitechucochudobaitechukhrovitechurchurchite or weinschenkite or weinschenkitechurn drillchurn drillingchurn holechursinitechutechute cutoffchute spillway or trough spillway or trough spillway