hercynite
/hɜːrˈsaɪnaɪt/Definitions
1. noun
A rare mineral, a spinel with iron and magnesium, found in iron ore.
“The geologist studied the hercynite in the iron ore deposit.”
1. noun
A rare mineral, a spinel with iron and magnesium, found in iron ore.
“The geologist studied the hercynite in the iron ore deposit.”