HEMATITE
\hˈɛmɐtˌa͡ɪt], \hˈɛmɐtˌaɪt], \h_ˈɛ_m_ɐ_t_ˌaɪ_t]\
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the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form
By Princeton University
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.