NAIL-FILE MINERAL Crossword Clue

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Crossword Puzzle Infos
The term 'Nail-File Mineral' refers to a type of mineral known as EMERY, which is a naturally occurring mixture of corundum and magnetite. It is used in the production of abrasive products such as nail files, sandpaper, and grinding wheels. EMERY has been used since antiquity for its hardness and durability, making it an ideal material for use in nail files.
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