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Webster 1913 Edition
Menaccanite
Me-nac′can-ite
,Noun.
[From
Menaccan
, in Cornwall, where it was first found.] (Min.)
An iron-black or steel-gray mineral, consisting chiefly of the oxides of iron and titanium. It is commonly massive, but occurs also in rhombohedral crystals. Called also
titanic iron ore
, and ilmenite
.