noun
Technical term for kaolin, a white clay used in ceramics and paper. Not an everyday word.
磁鉱は陶磁器の原料として使われる。
Kaolin is used as a raw material for ceramics.
noun
Abbreviation of 磁鉄鉱 (じてっこう). Rare standalone use; mostly encountered in technical contexts or as a shorthand.
See also: 磁鉄鉱
「磁鉱」は磁鉄鉱の略称として地質学で使われることがある。
磁鉱 is sometimes used in geology as an abbreviation for magnetite (磁鉄鉱).