更多ferruginous例句

1. A concretion of rounded quartz pebbles, cemented by ferruginous matter, apparently of recent formation.
2. Ferruginous masses, probably consisting of brown hematite, come also from this island.
3. He taught him how to clean letterpress and engravings from ferruginous, fungous, and other kinds of spots.
4. The boulders were all weathered a bright red and were much pitted where ferruginous minerals were leached out.
5. From nose to tail it measures about eighteen inches, and its general colour is a pale ferruginous brown, mixed with gray.