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Document and Entity Information
Jun. 23, 2020
Cover [Abstract]  
Entity Registrant Name MINERALS TECHNOLOGIES INC
Security Exchange Name NYSE
Amendment Flag false
Entity Central Index Key 0000891014
Document Type 8-K
Document Period End Date Jun. 23, 2020
Entity Incorporation State Country Code DE
Entity File Number 001-11430
Entity Tax Identification Number 25-1190717
Entity Address, Address Line One 622 Third Avenue
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10017-6707
City Area Code (212)
Local Phone Number 878-1800
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.10 par value
Trading Symbol MTX
Entity Emerging Growth Company false