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    <element id="GSTX_STRVentureMember" name="STRVentureMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_BoardOfDirectorsMember" name="BoardOfDirectorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_JansonMember" name="JansonMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ConsultingAgreementMember" name="ConsultingAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_KristiSteeleMember" name="KristiSteeleMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DavidHareMember" name="DavidHareMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_AndrewHamiltonMember" name="AndrewHamiltonMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MsKristineWooMember" name="MsKristineWooMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MrAnthonyLeighMember" name="MrAnthonyLeighMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MrIlgarIsayevMember" name="MrIlgarIsayevMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MrStephenBarnettMember" name="MrStephenBarnettMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_Parallel40LLCMember" name="Parallel40LLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ConvertibleLoanAgreementMember" name="ConvertibleLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DebtConvertibleAgreementMember" name="DebtConvertibleAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_LoanExtensionAndAmendmentAgreementMember" name="LoanExtensionAndAmendmentAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_Investor1Member" name="Investor1Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_TheQuartzSiliconMaterialsCompanyPtyLtdMember" name="TheQuartzSiliconMaterialsCompanyPtyLtdMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharePurchaseAgreementMember" name="SharePurchaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharePurchaseAgreement1Member" name="SharePurchaseAgreement1Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MrPaulSaffronMember" name="MrPaulSaffronMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MrDannyKennedyMember" name="MrDannyKennedyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MrVictorPereiraMember" name="MrVictorPereiraMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ThompsonFamilyTrustMember" name="ThompsonFamilyTrustMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_PerformanceBonusMember" name="PerformanceBonusMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MatthewBrownMember" name="MatthewBrownMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_MarkAndersonMember" name="MarkAndersonMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ArnoldMember" name="ArnoldMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ServiceAgreementMember" name="ServiceAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_QuartzSiliconMaterialsCompanyPtyLtdMember" name="QuartzSiliconMaterialsCompanyPtyLtdMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_NovusCapitalNomineesPtyLtdMember" name="NovusCapitalNomineesPtyLtdMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_FundraisingActivitiesMember" name="FundraisingActivitiesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DavidHalsteadMember" name="DavidHalsteadMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ShareHoldersMember" name="ShareHoldersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_TheresaMember" name="TheresaMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_InvestorsMember" name="InvestorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_Investors1Member" name="Investors1Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_Investors3Member" name="Investors3Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ChiefCommercialOfficerMember" name="ChiefCommercialOfficerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ConsultantMember" name="ConsultantMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_StuartMember" name="StuartMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_QuartzSiliconMaterialsCompanyPtyLtd1Member" name="QuartzSiliconMaterialsCompanyPtyLtd1Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_WMCMember" name="WMCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_QSMAUMember" name="QSMAUMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ConvertibleNotesPayableCurrentRelatedParty" name="ConvertibleNotesPayableCurrentRelatedParty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_CommonStockShareSubscribedButUnissuedSubscriptionsPayable" name="CommonStockShareSubscribedButUnissuedSubscriptionsPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipments" name="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_GainsOnExtinguishmentOfDebt" name="GainsOnExtinguishmentOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_OtherComprehensiveIncome" name="OtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DebtSettlement" name="DebtSettlement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DebtSettlementShares" name="DebtSettlementShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharesReturnedAndCancelled" name="SharesReturnedAndCancelled" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharesReturnedAndCancelledShares" name="SharesReturnedAndCancelledShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DebtDiscountOnNotesPayable" name="DebtDiscountOnNotesPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DebtDiscountOnNotesPayableShares" name="DebtDiscountOnNotesPayableShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharesIssuedForDebtExtinguishment" name="SharesIssuedForDebtExtinguishment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharesIssuedForDebtExtinguishmentShares" name="SharesIssuedForDebtExtinguishmentShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SettlementOfRelatedPartyDebt" name="SettlementOfRelatedPartyDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SaleOfSubsidiaryShare" name="SaleOfSubsidiaryShare" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_OtherComprehensiveIncomeNetOfTax" name="OtherComprehensiveIncomeNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_GainOnSettlementOfDebt" name="GainOnSettlementOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_LossOnSettlementOfDebt" name="LossOnSettlementOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_RightOfUseAssets" name="RightOfUseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_IncreaseDecreaseInLeaseLiabilities" name="IncreaseDecreaseInLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SaleOfSubsidiaryShares" name="SaleOfSubsidiaryShares" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_CashAcquiredFromPurchaseOfSubsidiary" name="CashAcquiredFromPurchaseOfSubsidiary" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_CancellationOfShares" name="CancellationOfShares" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DisclosureLeasesAbstract" name="DisclosureLeasesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_RecentAdoptedAccountingStandardsPolicyTextBlock" name="RecentAdoptedAccountingStandardsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ConvertibleNotesNetOfDiscount" name="ConvertibleNotesNetOfDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ConvertibleNotesPayableRelatedPartyNetOfDiscount" name="ConvertibleNotesPayableRelatedPartyNetOfDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_NotesPayableRelatedPartyNetOfDiscount" name="NotesPayableRelatedPartyNetOfDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SharesIssuedValue" name="SharesIssuedValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_DebtInstrumentIncreaseAccruedInterests" name="DebtInstrumentIncreaseAccruedInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_RelatedPartyLoanAmount" name="RelatedPartyLoanAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_OfficersCompensationMonthlyAmount" name="OfficersCompensationMonthlyAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_AllocatedShareBasedCompensationExpenseShares" name="AllocatedShareBasedCompensationExpenseShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SettledOfRelatedPartyPayables" name="SettledOfRelatedPartyPayables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SettledOfRelatedPartyPayablesShares" name="SettledOfRelatedPartyPayablesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SettledOfRelatedPartyPayablesSharesIssuedValue" name="SettledOfRelatedPartyPayablesSharesIssuedValue" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_ShareIssuedPricePerShare" name="ShareIssuedPricePerShare" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_SettleOutstandingObligations" name="SettleOutstandingObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_GainOnDebtSettlement" name="GainOnDebtSettlement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_PurchasePrice" name="PurchasePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="GSTX_OperatingLeaseLiabilities" name="OperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
