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  <xsd:element name="BRZMember" id="uamy_BRZMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonStockWarrantsMember" id="uamy_CommonStockWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AntimonySegmentMember" id="uamy_AntimonySegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ZeoliteSegmentMember" id="uamy_ZeoliteSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MetalsConcentrationFacilityPhilipsburgMember" id="uamy_MetalsConcentrationFacilityPhilipsburgMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LesseeOperatingLeaseFixedMonthlyLeasePayments" id="uamy_LesseeOperatingLeaseFixedMonthlyLeasePayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LeaseContractModificationIncreaseDecreaseInOperatingLeaseRightOfUseAssets" id="uamy_LeaseContractModificationIncreaseDecreaseInOperatingLeaseRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CorporateHeadquartersOfficeSpaceDallasMember" id="uamy_CorporateHeadquartersOfficeSpaceDallasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AtMarketOfferingMember" id="uamy_AtMarketOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AssetAcquisitionNumberOfMiningRightsClaimsAcquired" id="uamy_AssetAcquisitionNumberOfMiningRightsClaimsAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCashlessExercisesForTreasuryStockShares" id="uamy_ShareBasedCompensationArrangementByShareBasedPaymentAwardCashlessExercisesForTreasuryStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodForCash" id="uamy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodForCash" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AmendedAndRestated2023EquityIncentivePlanMember" id="uamy_AmendedAndRestated2023EquityIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UsDefenseLogisticsAgencyStrategicMaterialsMember" id="uamy_UsDefenseLogisticsAgencyStrategicMaterialsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CollaborativeArrangementTermOfContract" id="uamy_CollaborativeArrangementTermOfContract" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RevenueFromCollaborativeArrangementMaximumValueOfContract" id="uamy_RevenueFromCollaborativeArrangementMaximumValueOfContract" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PercentageOfPurityOfAntimonyMetalIngots" id="uamy_PercentageOfPurityOfAntimonyMetalIngots" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RevenueFromCollaborativeArrangementInitialPurchaseOrderValue" id="uamy_RevenueFromCollaborativeArrangementInitialPurchaseOrderValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ThompsonFallsMontanaMember" id="uamy_ThompsonFallsMontanaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherCommitmentInProgress" id="uamy_OtherCommitmentInProgress" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SupplyAgreementIndustrialCustomerMember" id="uamy_SupplyAgreementIndustrialCustomerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfCapitalExpenditureBySegmentTableTextBlock" id="uamy_ScheduleOfCapitalExpenditureBySegmentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PropertyPlantAndEquipmentRelatedPayablesIncludedInAccountsPayable" id="uamy_PropertyPlantAndEquipmentRelatedPayablesIncludedInAccountsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="WeightedAverageExercisePrice" id="uamy_WeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CommonStockWarrantsOneMember" id="uamy_CommonStockWarrantsOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WarrantsRemainingTerm" id="uamy_WarrantsRemainingTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MiningClaimsKoyukukMiningDistrictOfAlaskaMember" id="uamy_MiningClaimsKoyukukMiningDistrictOfAlaskaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="JointVentureAmericasGoldAndSilverCorporationMember" id="uamy_JointVentureAmericasGoldAndSilverCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AmericasGoldAndSilverCorporationMember" id="uamy_AmericasGoldAndSilverCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StockIssuedDuringPeriodSharesWarrantsExercised" id="uamy_StockIssuedDuringPeriodSharesWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfNetSmelterRoyalty" id="uamy_PercentageOfNetSmelterRoyalty" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InvestmentInDebtSecuritiesHeldToMaturityTextBlock" id="uamy_InvestmentInDebtSecuritiesHeldToMaturityTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TermOfSupplyAgreement" id="uamy_TermOfSupplyAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReceivableWithStatedYieldInterestRate" id="uamy_ReceivableWithStatedYieldInterestRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtSecuritiesHeldToMaturityCurrentGrossUnrealizedGain" id="uamy_DebtSecuritiesHeldToMaturityCurrentGrossUnrealizedGain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtSecuritiesHeldToMaturityNonCurrentGrossUnrealizedGain" id="uamy_DebtSecuritiesHeldToMaturityNonCurrentGrossUnrealizedGain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtSecuritiesHeldToMaturityGrossUnrealizedGain" id="uamy_DebtSecuritiesHeldToMaturityGrossUnrealizedGain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtSecuritiesHeldToMaturityCurrentGrossUnrealizedLosses" id="uamy_DebtSecuritiesHeldToMaturityCurrentGrossUnrealizedLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DebtSecuritiesHeldToMaturityNonCurrentGrossUnrealizedLosses" id="uamy_DebtSecuritiesHeldToMaturityNonCurrentGrossUnrealizedLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DebtSecuritiesHeldToMaturityGrossUnrealizedLosses" id="uamy_DebtSecuritiesHeldToMaturityGrossUnrealizedLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WeightedAveragePriceOfSharesIssued" id="uamy_WeightedAveragePriceOfSharesIssued" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCashlessExercises" id="uamy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCashlessExercises" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightIssued" id="uamy_ClassOfWarrantOrRightIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncrementalCommonSharesAttributableToRestrictedStockUnits" id="uamy_IncrementalCommonSharesAttributableToRestrictedStockUnits" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GovernmentGrantAwardObligatedAmount" id="uamy_GovernmentGrantAwardObligatedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GovernmentGrantAwardContingentAmount" id="uamy_GovernmentGrantAwardContingentAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GovernmentGrantRecipientContribution" id="uamy_GovernmentGrantRecipientContribution" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GovernmentGrantAwardObligatedAmountAuthorized" id="uamy_GovernmentGrantAwardObligatedAmountAuthorized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PreciousMetalsMillingFacilityMember" id="uamy_PreciousMetalsMillingFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfShipmentsFulfilled" id="uamy_NumberOfShipmentsFulfilled" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="QuantityOfShipmentsDelivered" id="uamy_QuantityOfShipmentsDelivered" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EquipmentFinancingMaturingMay2027Member" id="uamy_EquipmentFinancingMaturingMay2027Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquipmentFinancingMaturingMay2030Member" id="uamy_EquipmentFinancingMaturingMay2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentPayableNumberOfInstallments" id="uamy_DebtInstrumentPayableNumberOfInstallments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FinancingReceivablePrincipal" id="uamy_FinancingReceivablePrincipal" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LossContingencyDamagesSoughtValueDamages" id="uamy_LossContingencyDamagesSoughtValueDamages" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LossContingencyDamagesSoughtValueValueAddedTax" id="uamy_LossContingencyDamagesSoughtValueValueAddedTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCashlessExercisesForTreasuryStockShares" id="uamy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCashlessExercisesForTreasuryStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
</xsd:schema>
