graphite
noun[U]
uk/ˈɡræf.aɪt/us/ˈɡræf.aɪt/asoft,darkgreyformofcarbon, used in themiddleofpencils, as alubricantinmachines, and in somenuclearreactors
石墨Geology: mineralogy
- concentrate
- crude
- crystal
- crystalline
- deposit
- fool's gold
- gold dust
- intercrystalline
- magnesium
- mica
- mineral
- mineralogical
- mineralogist
- mineralogy
- nugget
- prospector
- pyrite
- quasicrystal
- silicate
- silicon