fossil ore मीनिंग इन हिंदी

उदाहरण वाक्य

1. A book from the 1800s described fossil ore, Bloomsburg red shale, and Middle Salina beds near Hemlock Creek.
2. :[ . . . ] " The Red Mountain ores are known as a red fossil ore, because originally the iron accumulated in extensive beds of fragments of fossils, principally the hard parts of crinoids, bryozoans, and brachiopods.