-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RhwTrGTMyEZkWz+yniH4mGZR2l3CGTgvHvEhIoRoy/YGUpjlC1cs9OP/lbZcbwey
 aRzsizXZtPuy17LB7zpo4w==

<SEC-DOCUMENT>0000891014-06-000216.txt : 20061218
<SEC-HEADER>0000891014-06-000216.hdr.sgml : 20061218
<ACCEPTANCE-DATETIME>20061218151147
ACCESSION NUMBER:		0000891014-06-000216
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20061215
FILED AS OF DATE:		20061218
DATE AS OF CHANGE:		20061218

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MINERALS TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000891014
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		IRS NUMBER:				251190717
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		405 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10174-0002
		BUSINESS PHONE:		212-878-1800

	MAIL ADDRESS:	
		STREET 1:		THE CHRYSLER BUILDING
		STREET 2:		405 LEXINGTON AVENUE, 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10174-0002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MUSCARI JOSEPH C
		CENTRAL INDEX KEY:			0001281343

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11430
		FILM NUMBER:		061283204

	MAIL ADDRESS:	
		STREET 1:		C/O ALCOA INC
		STREET 2:		201 ISABELLA ST
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15212-5858
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-12-15</periodOfReport>

    <issuer>
        <issuerCik>0000891014</issuerCik>
        <issuerName>MINERALS TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>MTX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001281343</rptOwnerCik>
            <rptOwnerName>MUSCARI JOSEPH C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MINERALS TECHNOLOGIES INC.</rptOwnerStreet1>
            <rptOwnerStreet2>405 LEXINGTON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10174</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>PHANTOM STOCK UNITS</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-12-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1.535</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>58.40</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>COMMON STOCK</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1.535</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1794.631</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">EACH PHANTOM STOCK UNIT, WHEN REDEEMED, WILL HAVE THE VALUE OF ONE SHARE OF THE COMPANY'S COMMON STOCK ON THE FIRST BUSINESS DAY OF THE MONTH IN WHICH PAYMENT IS MADE.</footnote>
        <footnote id="F2">THE PHANTOM STOCK UNITS WERE ACCRUED UNDER THE MINERALS TECHNOLOGIES INC. NON-FUNDED DEFERRED COMPENSATION AND UNIT AWARD PLAN FOR NON-EMPLOYEE DIRECTOR'S AND ARE TO BE SETTLED IN CASH UPON THE REPORTING PERSON'S RETIREMENT.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>LASZLO SERESTER FOR JOSEPH C. MUSCARI</signatureName>
        <signatureDate>2006-12-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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