ferromagnesian

[fer-oh-mag-nee-zhuhn, -shuhn]

adjective

Mineralogy.

1. (of minerals and rocks) containing iron and magnesium.

ferromagnesian

/ ˌfɛrəʊmæɡˈniːʒən /

adjective

1. (of minerals such as biotite) containing a high proportion of iron and magnesium

ferromagnesian

1. Containing iron and magnesium. Magnetite and hornblende are ferromagnesian minerals.

Word History and Origins

Origin of ferromagnesian¹

First recorded in 1900–05; ferro- + magnesi(um) ( def. ) + -an ( def. )