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  <xs:element id="crcl_NikhilChandhokMember" abstract="true" name="NikhilChandhokMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="crcl_HosseinRazzaghiMember" abstract="true" name="HosseinRazzaghiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="crcl_PreviousAllairePlanMember" abstract="true" name="PreviousAllairePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="crcl_PreviousRazzaghiPlanMember" abstract="true" name="PreviousRazzaghiPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
