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    <element id="ATLX_ContractualObligationDueFromThreeToFiveYears" name="ContractualObligationDueFromThreeToFiveYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_TotalOutstandingCommonStockPercentage" name="TotalOutstandingCommonStockPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_IncreaseDecreaseInDeferredConsiderationFromRoyaltiesSold" name="IncreaseDecreaseInDeferredConsiderationFromRoyaltiesSold" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_MartinRowleyMember" name="MartinRowleyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_RtekInternationalDMCCMember" name="RtekInternationalDMCCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_ScheduleOfRelatedPartiesOutstandingAmountAndExpensesTableTextBlock" name="ScheduleOfRelatedPartiesOutstandingAmountAndExpensesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_RTEKInternationalMember" name="RTEKInternationalMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="ATLX_FourCustomersMember" name="FourCustomersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
