A rare mineral containing iron and other elements, or a type of iron-bearing mineralogical compound.
From fers (iron) + -mite (mineral suffix, from Greek lithos meaning stone). Minerals with -mite endings are typically iron or metal-bearing crystalline compounds.
Fersmite is obscure enough that even mineralogists rarely encounter it, but it's part of a fascinating naming system where '-mite' minerals represent specific elemental combinations—it's like a chemistry shorthand written into rocks.
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