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  <xsd:element name="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractual" id="tmq_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractual" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BudgetTypeAxis" id="tmq_BudgetTypeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BudgetTypeDomain" id="tmq_BudgetTypeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_ContributedSurplusStockbasedCompensationMember" name="ContributedSurplusStockbasedCompensationMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_LeaseOperatingLeaseRightOfUseTableTextBlock" name="LeaseOperatingLeaseRightOfUseTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="tmq_LesseeOperatingLeaseLiabilityDiscountedAmount" name="LesseeOperatingLeaseLiabilityDiscountedAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="tmq_PresentValueOfLeasePaymentsRecognizedAsLeaseLiability" name="PresentValueOfLeasePaymentsRecognizedAsLeaseLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="tmq_South32LimitedMember" name="South32LimitedMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_AmblerMetalsLlcMember" name="AmblerMetalsLlcMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_EmployeesConsultantsAndDirectorsMember" name="EmployeesConsultantsAndDirectorsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_MineralPropertiesAxis" name="MineralPropertiesAxis" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_MineralPropertiesDomain" name="MineralPropertiesDomain" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_NumberOfBoardMembers" name="NumberOfBoardMembers" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="tmq_MineralPropertyAxis" name="MineralPropertyAxis" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_MineralPropertyDomain" name="MineralPropertyDomain" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="tmq_IncreaseDecreaseInOfficeLeasePayments" name="IncreaseDecreaseInOfficeLeasePayments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element name="SummaryOfNetAssetsAbstract" id="tmq_SummaryOfNetAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfBoardMembersAppointedByCompany" id="tmq_NumberOfBoardMembersAppointedByCompany" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="HumanResourcesAndAccountingServicesInConnectionWithServiceAgreement" id="tmq_HumanResourcesAndAccountingServicesInConnectionWithServiceAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OperatingLeaseCostPerMonth" id="tmq_OperatingLeaseCostPerMonth" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InterestReceived" id="tmq_InterestReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredShareUnitsMember" id="tmq_DeferredShareUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AtmEquityProgramAuthorizedAmount" id="tmq_AtmEquityProgramAuthorizedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TrilogyAndSouth32Member" id="tmq_TrilogyAndSouth32Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ConditionalInvestmentFromTransactionCommitmentAmount" id="tmq_ConditionalInvestmentFromTransactionCommitmentAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfUnitsIssuable" id="tmq_NumberOfUnitsIssuable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PricePerUnit" id="tmq_PricePerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfWarrantsPerUnit" id="tmq_NumberOfWarrantsPerUnit" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LossOnStrategicInvestmentCarriedAtFairValue" id="tmq_LossOnStrategicInvestmentCarriedAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfFinancialInstitutionsUninsuredCashHeld" id="tmq_NumberOfFinancialInstitutionsUninsuredCashHeld" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DerivativeLiabilityPercentageOfReasonablyPossibleChangeInUnobservableInput" id="tmq_DerivativeLiabilityPercentageOfReasonablyPossibleChangeInUnobservableInput" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DerivativeLiabilityIncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleChangeInUnobservableInput" id="tmq_DerivativeLiabilityIncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleChangeInUnobservableInput" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MeasurementInputProjectCompletionMember" id="tmq_MeasurementInputProjectCompletionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FairValueAdjustmentOfDerivatives" id="tmq_FairValueAdjustmentOfDerivatives" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RestrictedShareUnitsAndDeferredShareUnitsMember" id="tmq_RestrictedShareUnitsAndDeferredShareUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardReclassificationFromAdditionalPaidInCapitalToCommonStockUponExerciseOfOptions" id="tmq_ShareBasedCompensationArrangementByShareBasedPaymentAwardReclassificationFromAdditionalPaidInCapitalToCommonStockUponExerciseOfOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
</xsd:schema>
