<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 31-August-2026 [12:15:10] {PM}-->
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_iaux_StateofNevadaMember" xlink:to="lab_iaux_StateofNevadaMember" />
          <link:loc xlink:type="locator" xlink:href="iaux-20251231.xsd#iaux_GoldMember" xlink:label="loc_iaux_GoldMember" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_iaux_GoldMember" xml:lang="en-US">Gold [Member]</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_iaux_GoldMember" xlink:to="lab_iaux_GoldMember" />
        </link:labelLink>
      </link:linkbase>
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd" />
  <import namespace="http://xbrl.org/2014/extensible-enumerations" schemaLocation="http://www.xbrl.org/2014/extensible-enumerations.xsd" />
  <import namespace="http://xbrl.sec.gov/country-def/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026_def.xsd" />
  <import namespace="http://xbrl.sec.gov/snj-def/2026" schemaLocation="https://xbrl.sec.gov/snj/2026/snj-2026_def.xsd" />
  <import namespace="http://xbrl.org/2020/extensible-enumerations-2.0" schemaLocation="https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd" />
  <import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd" />
  <import namespace="http://xbrl.sec.gov/currency/2026" schemaLocation="https://xbrl.sec.gov/currency/2026/currency-2026.xsd" />
  <import namespace="http://xbrl.sec.gov/snj/2026" schemaLocation="https://xbrl.sec.gov/snj/2026/snj-2026.xsd" />
  <import namespace="http://xbrl.sec.gov/rxp/2026" schemaLocation="https://xbrl.sec.gov/rxp/2026/rxp-2026.xsd" />
  <import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd" />
  <element name="PaymentsbyProjectsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_PaymentsbyProjectsAbstract" substitutionGroup="xbrli:item" />
  <element name="ArgentaMineMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_ArgentaMineMember" substitutionGroup="xbrli:item" />
  <element name="FADProjectMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_FADProjectMember" substitutionGroup="xbrli:item" />
  <element name="GraniteCreekMineMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_GraniteCreekMineMember" substitutionGroup="xbrli:item" />
  <element name="LoneTreeMineMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_LoneTreeMineMember" substitutionGroup="xbrli:item" />
  <element name="McCoyCoveMineMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_McCoyCoveMineMember" substitutionGroup="xbrli:item" />
  <element name="RubyHillMineMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_RubyHillMineMember" substitutionGroup="xbrli:item" />
  <element name="EurekaCountyMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_EurekaCountyMember" substitutionGroup="xbrli:item" />
  <element name="GovernmentoftheUnitedStatesofAmericaMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_GovernmentoftheUnitedStatesofAmericaMember" substitutionGroup="xbrli:item" />
  <element name="HumboldtCountyMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_HumboldtCountyMember" substitutionGroup="xbrli:item" />
  <element name="StateofNevadaMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_StateofNevadaMember" substitutionGroup="xbrli:item" />
  <element name="PaymentsDetailsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_PaymentsDetailsAbstract" substitutionGroup="xbrli:item" />
  <element name="GoldMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="iaux_GoldMember" substitutionGroup="xbrli:item" />
</schema>
